American Journal of Environmental Engineering

American Journal of Environmental Engineering presents broad interdisciplinary information on the practice and status of research in environmental engineering science, systems engineering, and sanitation. A balanced contribution from consultants, practicing engineers, and researchers is sought on engineering solutions, and professional obligations and responsibilities.

p-ISSN: 2166-4633
e-ISSN: 2166-465X
Website: http://journal.sapub.org/ajee

Naima Belhaneche- Bensemra

Editorial Board Member of American Journal of Environmental Engineering

Professor, Environment Engineering Department of the National Polytechnic School of Algiers, Algeria

Research Areas

Study of the pollutions (water, soil, air), Elaboration, characterization and study of the behavior of novel polymers and additives, Study of the interactions between plastics packaging and food (simulators) and the methods to reduce them, Study of the co

Education

1989	Ph.D.	polymeric materials and composites, university Claude Bernard-Lyon I, France.
1985	M.Eng.	polymeric materials , the university Ferhat Abbas of Sétif (Algeria)

Experience

1989-present	head of the organic compounds team at the Sciences and Techniques of Environment Laboratory of the National Polytechnic School.
1989-present	professor, the Environment Engineering Department of the National Polytechnic School of Algiers

Publications: Journals

[1]	N. BENSEMRA, T.V. HOANG, A. MICHEL, M. BARTHOLIN, A. GUYOT, «Thermal Dehydrochlorination and Stabilization of Poly (vinyl chloride) in Solution: Part III-Zn-Ca Stearates as Stabilizers », Polymer Degradation and Stability, n° 23, pp 33- 50 (1989).
[2]	N. BENSEMRA, T.V. HOANG, A. GUYOT, M. GAY, L. CARRETTE, « Thermal Dehydrochlorination and Stabilization of Poly (vinyl chloride) in Solution: Part IV- Synergistic Effects of -Diketone Compounds and Metal Soap Stabilizers », Polymer Degradation and Stability, n° 24, pp 89-111 (1989).
[3]	M. F. LAURO DARRICADÈS, N . BENSEMRA, A. GUYOT, R. PÉTIAUD, « 13c and 1H NMR Analysis of structural Defects in PVC: Application to the production of defects at various polymerisation stages », Makromoleculare Chemie –Macromolecular Symposia, n° 29, pp 171-184 (1989).
[4]	N. BENSEMRA, T.V. HOANG, A. GUYOT, « Thermal Dehydrochlorination and Stabilization of Poly (vinyl chloride) in Solution: Part V. Influence of Structural Defects in the polymer », Polymer Degradation and Stability, n° 28 pp 173-184 (1990).
[5]	N. BENSEMRA, T.V. HOANG, A. GUYOT, « Thermal Dehydrochlorination and Stabilisation of Poly (vinyl chloride) in Solution: Part VI- Dihydropyridine as Organic Costabiliser with Zn- Ca Stearates », Polymer Degradation and Stability, n° 29, pp 175-189 (1990).
[6]	M. BARTHOLIN, N. BENSEMRA, T.V. HOANG, A. GUYOT, « Infrared evidence for the grafting of ester groups on poly (vinyl chloride) stabilised by zinc and calcium stearates », Polymer Bulletin, n° 23 pp 425- 430 (1990).
[7]	A. GUYOT, N. BENSEMRA, T.V. HOANG, « Thermal Dehydrochlorination and Stabilisation of Poly (vnyl chloride) in Solution: Part VII- Quaternary Stabiliser System with Two Metal Soaps, Dihydropyridine and - Diketone », Polymer Degradation and Stability, n° 32 pp 321-329 (1991).
[8]	N. BELHANECHE- BENSEMRA, A. BEDDA, « Analyse de la relation structure –propriétés des mélanges PVC- PMMA », Annales de chimie- Science des Matériaux, volume 26, N° 3, pp 79- 90 (2001).
[9]	M.T. BENANIBA, N. BELHANECHE- BENSEMRA, G. GELBARD, « Stabilizing effect of epoxidized sunflower oil on the thermal degradation of poly ( vinyl chloride) », Polymer Degradation and Stability, volume 74, n°3 , pp 501- 505 (2001).
[10]	N. BELHANECHE- BENSEMRA , N. OUAZENE, « Influence of atmospheric pollutants on the natural and artificial ageing of rigid polyvinyl chloride », ACS Polymer Preprints, 42 (2), 862- 863 (2001).
[11]	N. BELHANECHE- BENSEMRA, A.BEDDA, « Study of properties of PVC /ABS blends», Macromolecular Symposia, volume 176, pp 145- 153 (2001).
[12]	N. BELHANECHE- BENSEMRA, « Influence of atmospheric pollutants on the natural and artificial ageing of PVC », Journal of Vinyl and Additives Technology, volume 8, n° 1, pp 45- 54 (March 2002).
[13]	N. BELHANECHE- BENSEMRA, N. OUAZENE, « Study of the Influence of Atmospheric Pollutants on the Natural Ageing of Rigid Polyinyl chloride », Macromolecular Symposia, volume180, pp 180-190 (2002).
[14]	N. BELHANECHE-BENSEMRA, C. ZEDDAM, S. OUAHMED, «Study of the Migration of Additives from Plasticized PVC », Macromolecular Symposia, volume 180, pp 191- 202 (2002).
[15]	N. BELHANECHE _ BENSEMRA, B. BELAABED, A. BEDDA, « Study of the Miscibility and the Thermal Degradation of PVC/PMMA Blends », Macromolecular Symposia, volume 180, pp 203- 216 (2002).
[16]	N. BELHANECHE-BENSEMRA, M. A. CHABOU, « Etude des propriétés des mélanges PEBD régénéré/ PEBD non régénéré », Annales de Chimie- Science des Matériaux, volume 27, n° 4, pp 93- 105 (2002).
[17]	N. BELHANECHE-BENSEMRA, B. BELAABED & A. BEDDA, « Caractérisation des mélanges PVC/ PMMA rigides et plastifiés: I – Etude de la miscibilité », Annales de Chimie- Science des Matériaux, volume 28, n°1, pp 77- 89 (2003).
[18]	N. BELHANECHE-BENSEMRA, B. BELAABED, A. BEDDA, « Caractérisation des mélanges PVC/ PMMA rigides et plastifiés : II- Etude de la dégradation thermique », Annales de Chimie- Science des Matériaux, volume 28, n°3, pp 25- 42 (2003).
[19]	N. BELHANECHE – BENSEMRA, M.T. BENANIBA, G; GELBARD, « Stabilization of PVC by epoxidized sunflower oil in the presence of Zinc and Calcium Stearates », Polymer Degradation and Stability, volume 82, n°2, pp 245- 249 (2003).
[20]	N.BELHANECHE- BENSEMRA, A. BEDDA, B. BELAABED, « Study of the properties of rigid and plasticized PVC/PMMA blends », Macromolecular Symposia, volume 202, pp 151- 166 (2003).
[21]	S. ZEBOUDJ, N. BELHANECHE- BENSEMRA, R. BELABES, « Use of surface response methodology for the optimization of the concentration of the sweet orange essential oil of Algeria by wiped film evaporator », Journal of Food Engineering, volume 67, pp 507- 512 (2005).
[22]	D. ATEK, N. BELHANECHE- BENSEMRA, « FTIR investigation of the specific migration of additives from rigid poly (vinyl chloride) », European Polymer Journal, 41, pp 707-714 (2005).
[23]	A. NAMANE, A. MEKARZIA, K BENRACHEDI, N. BELHANECHE- BENSEMRA, A .HELLAL, « Determination of the adsorption capacity of activated carbon made from coffee grounds by chemical activation with ZnCl2 and H3PO4 », Journal of Hazardous Materials, B119, 189- 194 (2005).
[24]	K. AOUACHRIA, N. BELHANECHE- BENSEMRA, « Thermo- oxidative dehydrochlorination of rigid and plasticized PVC/PMMA blends », Polymer Degradation and Stability, volume 91, N°3, pp 504- 511 (2006).
[25]	M. O. BOUSSOUM, D. ATEK & N. BELHANECHE- BENSEMRA, « Interactions between PVC stabilised with epoxidized sunflower oil and food simulants », Polymer Degradation and Stability, volume 91, n°3, pp 579- 584 (2006).
[26]	S. ZEBOUDJ, N. BELHANECHE-BENSEMRA, R. BELABBES, P. BOURSEAU « Modelling of flow in a wiped film evaporator », Chemical Engineering Science, Volume 61, Issue 4, pp 1293- 1299 (2006).
[27]	K. AOUACHRIA & N. BELHANECHE- BENSEMRA, « Miscibility of PVC/ PMMA blends by Vicat softening temperature, viscometry, DSC and FTIR analysis », Polymer Testing, pp 1101– 1108 (2006).
[28]	N. GALLOUZE, N. BELHANECHE- BENSEMRA, « Etude de vieillissement du PVC stabilisé a l’huile de tournesol epoxydée sous l’action », Journal of the Algerian Chemical Society, volume 17 (1), PP 51- 64 (2007).
[29]	R. IRINISLIMANE, N. BELHANECHE- BENSEMRA, A. BENLEFKI, « Valorisation of regenerated LDPE by blending with EPDM in the presence of peroxide », Journal of Polymers and the Environment, volume 15 N°2 119 – 124 (2007).
[30]	M.T. BENANIBA, N. BELHANECHE-BENSEMRA, G. GELBARD, « 1H NMR in the study of epoxidation of sunflower oil with peracetic acid or with hydrogen peroxide in the presence of tungsten-based catalysts », European Journal of Lipid Science and Technology Volume 109, N° 12 , 1186-1193 (2007).
[31]	M.T BENANIBA, N. BELHANECHE-BENSEMRA, G. GELBARD, « Epoxidation of sunflower oil with peroxoacetic acid in presence of ion exchange resin by various processes », Energy Education Science and Technology, volume 21 (2), 71- 82 (2008).
[32]	N. GALLOUZE, N. BELHANECHE- BENSEMRA, « Effects of atmospheric pollution on the natural aging of poly (vinyl chloride) stabilized with epoxidized sunflower oil», Journal of Applied Polymer Science, volume 110 N° 4, 1973- 1978 (2008).
[33]	S. A. KABDI, N. BELHANECHE- BENSEMRA, « Mechanical recycling of compatibilized regenerated LDPE/ PVC blends», Journal of Applied Polymer Science, volume 110 N° 3 , 1750- 1755 (2008).
[34]	F. Z. TIGHILT, N. BELHANECHE, N. GABOUZE, « Study of polystyrene film coating on the surface of porous silicon », Physica status solidi, volume 5 N°2, PP 3698- 3700 (2008).
[35]	N. LARDJANE, N. BELHANECHE-BENSEMRA, « Migration of Additives in Simulated Landfills and Soil Burial Degradation of Plasticized PVC», Journal of Applied Polymer Science, volume 111, N° 1, pp 525- 531 (2009).
[36]	K. AOUACHRIA, V. MASSARDIER, N. BELHANECHE- BENSEMRA, « Thermooxidative degradation of rigid and plasticized PVC/ PMMA blends», International Journal of Polymeric Materials, volume 58, pp 336-346 (2009).
[37]	H. MOKRANE, K. GEBRUERS, J. BEAUGRAND, P. PROOST, B. NADJEMI, N. BELHANECHE-BENSEMRA, CHRISTOPHE M COURTIN, JAN A DELCOUR, « Algerian Pearl Millet ( Pennisetum glaucum L.) Contains XIP but Not TAXI and TLXI Type Xylanase Inhibitors », Journal Agric Food Chem, Jun 24; 57 (12): 5542- 5548 (2009).
[38]	N. BOUDRIES, N. BELHANECHE-BENSEMRA, B. NADJEMI, C. DEROANNE, M. MATHLOUTHI, B. ROGER AND M. SINDIC. « Physicochemical and functional properties of starches from sorghum cultivated in the Sahara of Algeria », Carbohydrate Polymers , Volume 78, Issue 3, 15 October, pp 475- 480 (2009).
[39]	D. DJABALI, N. BELHANECHE, B NADJEMI, V. DULONG, L. PICTON, « Relationship between potato starch isolation methods and kinetic parameters of hydrolysis by free and immobilized α-amylase on alginate », Journal of Food Composition and Analysis (22) , pp 563- 570 (2009).
[40]	C. ZEDDAM, N. BELHANECHE- BENSEMRA, « Kinetic study of the specific migration of an oganotin heat stabilizer from rigid poly (vinyl chloride) into food simulants by FTIR spectroscopy », International Journal of Polymeric Materials, volume 59, issue 5 , pp 318- 329 (2010).
[41]	D. ATEK, N. BELHANECHE- BENSEMRA, M. TURKI, « GAS Chromatography-Mass spectrometry Determination of the Migration of epoxidized Sunflower oil from Poly (Vinyl Chloride) », International Journal of Polymeric Materials, volume 59 Issue 5 , pp 342- 352 (2010).
[42]	H. MOKRANE, H. AMOURA, N. BELHANECHE-BENSEMRA , M. CHRISTOPHE, M. COURTIN, A. DELCOUR , B. NADJEMI, « Assessment of Algerian sorghum protein quality [Sorghum bicolor (L.) Moench] using amino acid analysis and in-vitro pepsin digestibility », Journal of Food Chemistry, volume 121, issue 3, pp 719- 723 (2010).
[43]	N. BELHANECHE- BENSEMRA, « Effect of O3 and NO2 on the natural weathering of plasticized PVC», Society of Plastics Engineers (SPE) (2010).
[44]	N. GALLOUZE, N. BELHANECHE- BENSEMRA, S. COMMEREUC, V. VERNEY «Effect of O3 and NO2 on the natural weathering of plasticized PVC », Journal of Vinyl Additive & Technology, volume 17, issue 2, pages 105–111 (2011).
[45]	N. LARDJANE, N. BELHANECHE- BENSEMRA, V. MASSARDIER- NAGEOTTE, P. Alcouffe, « soil burial degradation of new bio-based additives : I/ rigid pvc films», Journal of Vinyl Additive & Technology, volume 17, issue 2, pp 98– 104 (2011).
[46]	K. AOUACHRIA, N. BELHANECHE-BENSEMRA, V. MESSARDIER, « Viscoelastic properties, morphology, and thermal stability of rigid and plasticized poly(vinyl chloride)/poly(methyl methacrylate) blends», Journal of Vinyl Additive & Technology, volume 17, issue 3, pp 156– 163 (2011).
[47]	FATMA-ZOHRA TIGHILT, PALANIAPPAN SUBRAMANIAN, NAIMA BELHANECHE-BENSEMRA, RABAH BOUKHERROUB, NOUREDDINE GABOUZE, SABRINA SAM AND SABINE SZUNERITS, «Localized surface plasmon resonance interfaces coated with poly[3-(pyrrolyl)carboxylic acid] for histidine-tagged peptide sensing», Analyst, volume 136, pp 4211- 4216 (2011).
[48]	CHAFIA ZEDDAM, NAIMA BELHANECHE- BENSEMRA, « Application of ftir spectroscopy to the specific migration study of an organotin heat stabilizer from rigid poly (vinyl chloride) into food simulants », J. Polimery, No 9, pp 657- 661 ( 2011).
[49]	DJEMAI-ZOGHLACHE Y, ISAMBERT A, Belhaneche-Bensemra N , «Electrochemical behavior of the 316L steel type in a marine culture of microalgae (Porphyridium purpureum) under the 12/12 h photoperiod and effect of different working electrode exposure conditions on the biofilm-metal interface», J Ind Microbiol Biotechnol, volume 38, issue 12, pp 1969- 1978 (2011).
[50]	M. O. BOUSSOUM, N. BELHANECHE-BENSEMRA, «Study and optimization of a soaking treatment to reduce migration from plasticized PVC », Journal of Applied Polymer Science, Volume 124, Issue 2, 1241–1248, 2012

Publications: Conferences/Workshops/Symposiums

[1]	M. F. LAURO, N. BENSEMRA, A. GUYOT , R. PETIAUD, « "13C and 1H NMR analysis of structural defects in PVC : Application to the production of defects at various polymerization stages », 31ème Meeting on Macromolecules, 18- 21 July 1988; Prague, Czech Republic.
[2]	N. BENSEMRA T.V. HOANG, A. GUYOT, « Thermal stabilization of PVC : synergistic effect between -diketone and metal soap stabilizers », 31ème Meeting on Macromolecules , 18- 21 July 1988, Prague, Czech Republic.
[3]	N. BELHANECHE- BENSEMRA, A. BEDDA, «Study of properties of PVC /ABS blends », First International Conference on Polymer Modification, Degradation and Stabilisation; 3-7 September 2000, Palermo, Italy.
[4]	M.T. BENANIBA,/N. BELHANECHE- BENSEMRA , G. GELBARD, « Stabilizing effect of epoxidized sunflower oil on the thermal degradation of poly ( vinyl chloride) », First International Conference on Polymer Modification, Degradation and Stabilisation; 3- 7 September 2000, Palermo, Italy.
[5]	N. BELHANECHE- BENSEMRA, M. A. CHABOU, «Etude de la valorisation du polyéthylène basse densité régénéré par recyclage mécanique », Congrès Euro Méditerranéen de la matière condensée, 04- 06 Juin 2001, Tlemcen, Algérie.
[6]	N. BELHANECHE- BENSEMRA, N. OUAZENE, «Study of the influence of atmospheric pollutants on the natural ageing of rigid poly vinyl chloride », 7th European Conference on Advanced Materials and Processes, 10- 14 June 2001, RIMINI, Italy.
[7]	N. BELHANECHE-BENSEMRA, S. OUAHMED, C. ZEDDAM, «Study of the migration of additives from plasticized PVC », 7th European Conference on Advanced Materials and Processes , 10- 14 June 2001, RIMINI, Italy.
[8]	N. BELHANECHE _ BENSEMRA, B. BELAABED, A. BEDDA, «Study of the miscibility and the thermal degradation of PVC/PMMA blends », 7th European Conference on Advanced Materials and Processes , 10- 14 June 2001, RIMINI, Italy.
[9]	N. BELHANECHE –BENSEMRA, «Valorisation of Regenerated Low Density Polyethylene (LDPE) Deriving from Different Sources by Mechanical Recycling with Virgin LDPE », 3rd International symposium on Incineration and Flue Gas treatment Technologies 2- 4 July 2001, Brussels , Belgium.
[10]	N. BELHANECHE –BENSEMRA, «Influence of Atmospheric Pollutants on the Natural and Artificial Ageing of Rigid Poly vinyl chloride », Symposium on PVC and related polymers : Chemistry and application, 26- 31 August 2001, Chicago, USA.
[11]	N. BELHANECHE-BENSEMRA, M. A. CHABOU, «Mechanical Properties of Regenerated LDPE/ Virgin LDPE Blends », Polymer Processing Symposia, 22- 24 October 2001, Antalya, Turkey.
[12]	N. BELHANECHE-BENSEMRA, B. BELAABED, A. BEDDA, « Thermal Degradation of PVC/PMMA Blends », Polymer Processing Symposia, 22- 24 October 2001, Antalya, Turkey.
[13]	N. BELHANECHE- BENSEMRA, C. ZEDDAM, «Etude de la migration spécifique d’additifs du PVC dans différents milieux simulateurs liquides », Troisième Colloque Franco-Libanais sur la Science des Matériaux (CSM3), 16- 18 Mai 2002, Bayreuth, Lebanon.
[14]	N. BELHANECHE – BENSEMRA, M.T. BENANIBA, G . GELBARD, «Stabilization of PVC by epoxidized sunflower oil in the presence of Zinc and Calcium Stearates», 2nd International Conference on Polymer Modification, Degradation and Stabilisation; 30 June-4 July 2002, Budapest, Hungary.
[15]	N. BELHANECHE- BENSEMRA, B. BELAABED, A. BEDDA, «Study of the properties of rigid and plasticized PVC/PMMA blends », 2 nd International Conference on Polymer Modification, Degradation and Stabilisation; 30 June- 4 July 2002, Budapest, Hungary.
[16]	N. BELHANECHE – BENSEMRA, «Mechanical recycling of low density polyethylene », 2 nd International Symposium on Feedstock Recycling of Plastics », 8- 11 September 2002, Ostend Belgium.
[17]	N. BELHANECHE – BENSEMRA, C. ZEDDAM, «Investigation of the specific migration of di- (2-ethyl hexyl) phtalate and an organotin stabilizer from PVC films », Polymeric Materials 2002, 25- 27 September 2002, Halle/ Saale, Germany.
[18]	N. BELHANECHE- BENSEMRA, A. BEDDA, B. BELAABED, «Investigation of miscibility thermal stability and mechanical properties of rigid and plasticized PVC/PMMA blends », Polymeric Materials 2002, 25- 27 September 2002, Halle/ Saale, Germany.
[19]	N. BELHANECHE-BENSEMRA, S. BOUCHTAOUI-ZEBOUDJ, R. DERRICHE, «Modélisation de l’épaisseur du film et du temps de séjour dans un évaporateur à film raclé », 4eme journées réacteurs, Liège, 8-11 October 2002. Belgium
[20]	N. BELHANECHE – BENSEMRA, B. BELAABED, A. BEDDA, « Caractérisation des mélanges PVC/ PMMA », Premier Congrès Interdisciplinaire –Materiaux 2002, 21- 25 October 2002, Tours, France.
[21]	K. AOUACHRIA, N. BELHANECHE- BENSEMRA, « Étude de la dégradation thermo-oxydante des mélanges PVC/PMMA rigides et plastifiés », IV emes Journées sur les Polymères organiques et leurs applications, 24- 25 April 2003, Rabat, Morocco.
[22]	D. ATEK, N. BELHANECHE–BENSEMRA, « Application de la spectroscopie infrarouge à transformée de Fourier à l’analyse de la migration spécifique d’additifs du PVC », IV emes Journées sur les Polymères organiques et leurs applications, 24- 25 April 2003, Rabat, Morocco.
[23]	D. ATEK, N. BELHANECHE–BENSEMRA, « Caractérisation de la migration d’additifs à partir du polychlorure de vinyle rigide stabilisé à l’huile de tournesol époxydée », International Symposium on Green Chemistry , 19-22 may 2003, Poitiers, France.
[24]	D. ATEK, N. BELHANECHE – BENSEMRA, « Migration of Additives from Rigid polyyvinyl Chloride Stabilised with Epoxidized Sunflower oil », 8th European Congress and on Advanced Materials and Processes , 1- 5 September 2003 , Lausanne, Switzerland
[25]	N. BELHANECHE – BENSEMRA, D. ATEK, «FTIR investigation of the specific migration of additives from rigid PVC », International Conference on Interfaces and Interphases in Multicomponent Materials, 5- 8 October 2003, Balatonfured, Hungary.
[26]	N. BELHANECHE – BENSEMRA, K. AOUACHRIA, «Investigation of the thermo-oxydative Degradation of PVC/PMMA blends», Materials Congress 2004, 30 March- 1 April 2004, London, England
[27]	K. AOUACHRIA, N. BELHANECHE – BENSEMRA, «Effets de la teneur en PMMA sur la dégradation thermo-oxydante des mélanges PVC/PMMA rigides et plastifiés », Quatrième Colloque Franco-Libanais sur la Science des Matériaux (CSM4), 26-28 May 2004, Bayreuth , Lebanon.
[28]	M. T. BENANIBA, N. BELHANECHE– BENSEMRA, G. GELBARD, «Influence du taux d’époxydation de l’huile de tournesol sur la stabilisation thermique du Polychlorure de vinyle », Quatrième Colloque Franco-Libanais sur la Science des Matériaux (CSM4), 26- 28 May 2004, Bayreuth, Lebanon.
[29]	H. BELHANECHE, A. BEDDA, N. BELHANECHE- BENSEMRA, «Caractérisation du comportement mécanique des mélanges PVC/PMMA », Quatrième Colloque Franco-Libanais sur la Science des Matériaux (CSM4), 26-28 May 2004, Bayreuth, Lebanon. .
[30]	N. BELHANECHE- BENSEMRA, K. AOUACHRIA, «On the Miscibility of Polyvinyl Chloride with polymethyl Methacrylate», WORLD POLYMER CONGRESS MACRO 2004, 4- 9 July 2004, Paris, France.
[31]	N. BELHANECHE- BENSEMRA, M. O. BOUSSOUM, D. ATEK, «Interactions between PVC stabilised with epoxidized sunflower oil and food simulants », Third International Conference on Polymer Modification, Degradation and Stabilisation, 29 August-3 September 2004, Lyon, France.
[32]	N. BELHANECHE- BENSEMRA, K. AOUACHRIA, «Thermo- oxidative dehydrochlorination of rigid and plasticized PVC/PMMA blends», Third International Conference on on Polymer Modification, Degradation and Stabilisation, 29 August-3 September 2004, Lyon, France.
[33]	N. BELHANECHE- BENSEMRA, K. AOUACHRIA, «Effect of polymethyl methacrylate on the thermal stability of poly vinyl chloride », 11th International Conference Polymeric Materials 2004, September 29- October 01, 2004, Halle/Saale, Germany.
[34]	N. BELHANECHE- BENSEMRA, N. GALLOUZE, «Environnemental corrosion of PVC stabilized with epoxidized sunflower oil », European Polymer Congress 2005, June 27- July 1, 2005, Moscow, Russia.
[35]	N. BELHANECHE- BENSEMRA, R. IRINISLIMANE, A. BENLEFKI, « Valorisation of LDPE wastes by mechanical recycling with EPDM », Polymers for Advanced Technologies, September 13- 16, 2005, Budapest, Hungary.
[36]	N. BELHANECHE- BENSEMRA, S. A. KABDI, «Compatibilisation of regenerated low density polyethylene/ poly (vinyl chloride) blends », International Conference on Interface and Interphases in Multicomponent Materials, 12- 14 September 2005, Lyon, France.
[37]	N. BELHANECHE- BENSEMRA, R. IRINISLIMANE, «Preparation and caracterisation of regenerated LDPE/ EPDM blends», 3 rd International Symposium on Feedstock Recycling of Plastics, 25- 29 September 2005, Karlsruhe, Germany.
[38]	N. BELHANECHE- BENSEMRA, R. IRINISLIMANE, «Valorisation of regenerated LDPE by blending with EPDM in the presence of a peroxide », 8th European Symposium on Polymer Blends and Eurofillers, May 9-12, 2005, Bruges, Belgium.
[39]	W. Chellil, B. BOUCHAREB, M. T. BENANIBA, N. BELHANECHE- BENSEMRA, «Etude rhéologique des formulations de PVC- HTE vieillies artificiellement et naturellement », 3eme colloque International de Rhéologie CIR 05, 12- 14 Novembre 2005, Bejaia, Algerie
[40]	B. BOUCHAREB, W. Chellil, , M. T. BENANIBA, N. BELHANECHE- BENSEMRA, «Etude rhéologique en régime statique de l’effet de l’huile de tournesol époxydée comme plastifiant du PVC dans des conditions variables », 3eme colloque International de Rhéologie CIR 05, 12, -14 Novembre 2005, Bejaia, Algerie
[41]	H.MOKRANE. H.BILLEL, N. ABDELI, H. AMOURA, N. BELHANECHE- BENSEMRA, BOUBEKEUR NADJEMI, «Valorisation des protéines de sorgho par hydrolyse enzymatique, 1er colloque Euro-méditerranéen en biologie végétale et environnement», 28- 30 novembre 2005, Annaba, Algerie
[42]	B. BOUCHAREB, W. CHELLIL , M. T. BENANIBA, N. BELHANECHE- BENSEMRA, «Epoxidation of Sunflower Oil and its Effects on Poly(vinyl chloride) Films as a Novel Plasticizer», 8th ARAB INTERNATIONAL CONFERENCE ON POLYMER SCIENCE & TECHNOLOGY, EG0700350 , 27– 30 November 2005, Cairo-Sharm El-Shiekh, EGYPT.
[43]	N. BELHANECHE- BENSEMRA, AND R. IRINISLIMANE, «Valorisation of Regenerated LDPE by Blending with EPDM in the Presence of a Peroxide», 8th ARAB INTERNATIONAL CONFERENCE ON POLYMER SCIENCE & TECHNOLOGY, EG0700350 , 27– 30 November 2005, Cairo-Sharm El- Shiekh, EGYPT.
[44]	H. MOKRANE, H. AMOURA, N. BELHANECHE-BENSEMRA, B. NADJEMI, «Valorization and recovery of proteins from Algerian varieties of pearl millet (Pennisetum glaucum) by enzymatic hydrolysis», Symposium Environmental Biocatalysis: From remediation with enzymes to novel green processes, EnvBC2006", April 23- 26th 2006, Cordoba , Spain.
[45]	N. BELHANECHE- BENSEMRA, N. GALLOUZE, «Etude de vieillissement du PVC stabilisé à l’huile de tournesol époxydée sous l’action de la pollution atmosphérique », Cinquième Conférence Internationale sur la Science des Matériaux (CSM5), 17- 19 May 2006, Bayreuth, Lebanon.
[46]	N. BELHANECHE- BENSEMRA, N. LARDJANE, « Migration of additives in simulated landfills and soil burial degradation of plasticized PVC », Times of Polymers and Composites, 17- 20 June 2006, Ischia, Italy.
[47]	H. MOKRANE, N. BOUDRIES, DJ.DJABALI, M. YOUSFI, N. BELHANECHE-BENSEMRA, NADJEMI BOUBEKEUR, «Extraction et caractérisation des protéines de plusieurs variétés de céréales algériennes », 10ème congrès SFGP 2006 Toulouse, France.
[48]	H. MOKRANE, H. AMOURA, N. BELHANECHE-BENSEMRA, B. NADJEMI, « Extraction of prolamins from sorghum (sorghum bicolor) and effect on in vitro protein digestibility », In proceeding of the International congress on Biocatalysis, Hamburg, 3- 7 September 2006, Germany.
[49]	N. BELHANECHE- BENSEMRA, N. LARDJANE, «Characterization of plasticized PVC stabilized with epoxidized sunflower oil», Fourth International Conference on Polymer Modification, Degradation and Stabilisation, 10- 14 September 2006, San Sebastian, Spain.
[50]	N. BELHANECHE- BENSEMRA, S.A.KABDI, «Mechanical recycling of regenerated LDPE in the presence of PVC and compatibilizers », Fourth International Conference on Polymer Modification, Degradation and Stabilisation, 10- 14 September 2006, San Sebastian, Spain.
[51]	N. BELHANECHE- BENSEMRA, W. CHELLIL, M.T. BENANIBA, «Study of the natural ageing of poly vinyl chloride stabilized with epoxidized sunflower oil », Fourth International Conference on Polymer Modification, Degradation and Stabilisation, 10- 14 September 2006, San Sebastian, Spain.
[52]	K. AOUACHRIA, N. BELHANECHE- BENSEMRA, «Thermo- oxidative dehydrochlorination of rigid and plasticized PVC/PMMA blends», the 2nd International Conference of Chemical Industries Research Division Under the theme of Chemical Industries Role and Future aspects, November 21- 23, 2006, Cairo, Egypt.
[53]	53 /N. BELHANECHE- BENSEMRA, S. A. KABDI, « Compatibilization of regenerated lDPE/ PVC blends », 9th European Symposium Polymer Blends, September 9- 12, 2007, Palermo, Italy.
[54]	F. Z. TIGHILT, N. BELHANECHE- BENEMRA , N. GABOUZE, «Study of Polystyrene film coating on the surface of porous silicon », 3Rd International Conference on micro- Nanoelectronics, nanotechnology & MEMs NCSR DEMOKRITOS, Athens, 18- 21 November 2007, Greece.
[55]	N. BELHANECHE- BENSEMRA, C. C. CHOUIREF, «Compatibilization of regenerated LDPE/ PS blends», 1st International Conference on Materials Science & Nanotechnology 2- 4 December 2007, Cairo, Egypt.
[56]	N. BELHANECHE- BENSEMRA, «Matières plastiques et risques pour la santé et l’environnement », Colloque International sur les Matériaux Emergents, CIME 2008, 18- 19 Février 2008, Sétif, (ALGERIA).
[57]	F. Z. TIGHILT, N. BELHANECHE- BENSEMRA, N. GABOUZE, «Electrochemical Modification of porous Silicon by Polymer Grafting», Colloque International sur les Matériaux Emergents, CIME 2008, 18- 19 Février 2008, Sétif, (ALGERIA).
[58]	C. CHOUIREF CHEFIRIA, N. BELHANECHE- BENSEMRA, «Etude de Recyclage Matière du Polyéthylène Basse densité régénéré avec le Polystyrène en présence d’un agent compatibilisant », Colloque International sur les Matériaux Emergents, CIME 2008, 18- 19 Février 2008, Sétif, (ALGERIA).
[59]	N. LARDJANE, N. BELHANECHE- BENSEMRA, «Etude d’Impact du PVC sur l’Environnement », Colloque International sur les Matériaux Emergents, CIME 2008, Sétif 18- 19 Février 2008, Sétif, (ALGERIA).
[60]	K. AOUACHRIA, N. BELHANECHE- BENSEMRA, «Dynamical Mechanical Charcterization of Rigid and plasticized PVC/ PMMA blends », Colloque International sur les Matériaux Emergents, CIME 2008, 18- 19 Février 2008, Sétif, (ALGERIA).
[61]	N. CHELLIL, N. BELHANECHE- BENSEMRA, «Caractérisation des films en PVC vieillis naturellement », Colloque International sur les Matériaux Emergents, CIME 2008, 18- 19 Février 2008, Sétif, (ALGERIA).
[62]	N. BELHANECHE- BENSEMRA, C. C. CHOUIREF, «Valorisation of regenerated LDPE by blending with PS in Presence of compatibilizer », Polymer Processing Society , 24 th Annual Meeting , 15- 19 June 2008, Salerno, Italy.
[63]	R. IRINISLIMANE, N. BELHANECHE- BENSEMRA, «Characterisation of regenerated LDPE/EPDM blends in the presence of a peroxide», International Conference on Polymer Modification, Degradation and Stabilisation, 7- 11 September 2008, Liege, Belgium.
[64]	K. AOUACHRIA, V. MASSARDIER, N. BELHANECHE- BENSEMRA, «Thermo-oxidative degradation of rigid and plasticized PVC/ PMMA blends », International Conference on Polymer Modification, Degradation and Stabilisation, 7- 11 September 2008, Liege, Belgium.
[65]	H. MOKRANE, B. NADJEMI, N.BELHANECHE- BENSEMRA, M. C. COURTIN, B. KRISTOF J. A. DELCOUR, « Extractability and characterization of pearl millet (Pennisetum glaucum) proteins from Algerian cultivars », international meeting, diversity of grains, September 21- 24, 2008, Hawai, Honolulu, USA, abstract published in Cereal Food World, volume 53, N°4, A70.
[66]	N. LARDJANE, V. MASSARDIER-NAGEOTTE, N. BELHANECHE- BENSEMRA , «Study of the properties and of some environmental impacts of new bio-based additivesof Polyvinyl chloride (PVC) for its recycling in constructions » Sustainable Management of waste and Recycled Materials in Construction, Wascon 3- 5 June 2009 , Lyon France
[67]	F. Z. TIGHILT, J.- N. CHAZALVIEL, F. OZANAM, N. BELHANECHE- BENSEMRA, R. BOUKHERROUB, N. GABOUZE , S. SAM, « Study and Characterization of a Functionalized Polymer Monolayer on a Porous Silicon surface », 13th European Conference on Applications of Surface and Interface Analysis, 18- 23 October 2009 , Antalia Turkey.
[68]	M .O. BOUSSOUM, N.BELHANECHE-BENSEMRA, « Study the migration of the plastizer di-octyl phthalate (DOP) in synthetic saliva », Congres International (Eaux) Déchets, Environnement, 12- 13 , November 2009, El- Jadida, Morocco
[69]	N. LARDJANE, Y. MEDKOUR, N. BELHANECHE- BENSEMRA, «Etude de la biodégradation de l’huile de tournesol époxydée », 2nd International Conference on Biotechnology", BIOTECH WORLD 2010:STARTUPS AND BIOTECHNOLOGY", 26 – 29 April 2010, Oran, Algeria.
[70]	B. BOUBAKEUR , N. BELHANECHE-BENSEMRA, «Study of the mechanical Properties of LDPE/PLA», The 5 International Symposium on Hydrocarbons & Chemistry, 23- 25 May 2010, Sidi Fredj, Algiers Algeria.
[71]	N. GUERFI, N. BELHANECHE- BENSEMRA, «Regenerated low density polyethylene/ polypropylene blends: characterization and valorisation », International Soft Matter Conference, 5- 8 July 2010, Granada, Spain.
[72]	Y. R. HOCINE, M. O. BOUSSOUM , N. BELHANECHE- BENSEMRA, «New plasticized PVC materials with low migration levels », International Soft Matter Conference, 5- 8 July 2010, Granada, Spain.
[73]	N. GUERFI, N. BELHANECHE-BENSEMRA, «Compatibilization of regenerated low density polyethylene/polypropylene blends », International Conference Polymeric Materials 2010, September 15- 17, 2010, Halle, Germany.
[74]	N. BELHANECHE- BENSEMRA, M. O. BOUSSOUM, K. BOUCHAKOUR, «Dioctyl phthalate migration from PVC into saliva", International Conference Polymeric Materials 2010, September 15- 17, 2010, Halle, Germany.
[75]	N. BELHANECHE- BENSEMRA, D. BOUROUIS- DJEDOUANI, Y. DJEMAI-ZOGHLACHE, «Investigation of the soil burial degradation of semi rigid and plasticized PVC stabilized with epoxidized sunflower oil», International Conference Polymeric Materials 2010, September 15- 17, 2010, Halle, Germany.
[76]	C. ZEDDAM, N. BELHANECHE- BENSEMRA, L. TIGHZERT, «Migration of BHT and its UVB products degradation from polystyrene films into fatty food stimulant », International Conference Polymeric Materials 2010, September 15- 7, 2010, Halle, Germany.
[77]	N. LARDJANE, N. BELHANECHE- BENSEMRA, «Impacts environnementaux du polychlorure de vinyle », MATERIAUX 2010 – 18-22 October 2010 – Nantes, France.
[78]	N. BELHANECHE- BENSEMRA, C. ZEDDAM, «Application of FTIR spectroscopy to the specific migration study of an organotin heat stabilizer from rigid poly (vinyl chloride) into food simulants», VIII International Conference on X- Ray Investigations of Polymer Structure, Wrocław, 8- 10 December 2010, Poland.
[79]	F. Z.TIGHILT, N. BELHANECHE-BENSEMRA, N. E. GABOUZE , «Electro-chemical synthesis of poly (3-(pyrrolyl) alkanoic acid) on ITO substrates for metals detection», Frontiers in Polymer Science, 29- 31 May 2011, Lyon , France
[80]	N. BOUDRIES, M. SINDIC, B. NADJEMI, N. BELHANECHE-BENSEMRA , «Functional and physicochemical properties of starches isolated from pearl millet cultivars cultivated in algerian hyperarid regions», Frontiers in Polymer Science, 29- 31 May 2011, Lyon , France
[81]	N. LARDJANE, N. BELHANECHE- BENSEMRA, «Soil burial degradation of new bio- based additives», Congress EUROMAT 2011, 12- 15 September, Montpellier , France.
[82]	F- TIGHILT, F. ZANE, N. BELHANECHE- BENSEMRA, S. BELHOUSSE, S. SAM), N. GABOUZE, «Electrochemical Sensors Based On Polyptrole And Porous Silicon, », First Euro- Mediterranean Conference on Materials and Renewable Energies, 21- 25 November 2011, Marrakech- Morocco.
[83]	MOKRANE Hind, BOUDRIES Nadia, DJABALI Djaafar, YOUSFI Mohamed, BELHANECHE Naima, NADJEMI Boubekeur. «Extraction et caracterisation des proteines de plusieures variètés de cereals Algeriennes », XIXème congrès EUCHEMS en Chimie Organométallique (EuCOMC) 3 au 7 July 2011, Toulouse, France
[84]	M. O. BOUSSOUM, N. BELHANECHE- BENSEMRA, «Impact environnemental de la présence des phtalates dans les emballages», 3eme édition du congrès International sur l’Eau, Déchets et Environnement, 21- 23 novembre, 2011, Fes, Morocco.
[85]	N. LARDJANE, N. BELHANECHE- BENSEMRA, V. MESSARDIER, «Etude de la migration de certains additifs de poly chlorure de vinyle (PVC) dans le sol», Troisième colloque International de Chimie, 22- 24 Novembre 2011, Université de Batna , Algeria.
[86]	M. O. BOUSSOUM, K. BOUCHAKOUR, N. BELHANECHE- BENSEMRA, « Dioctyl phthalate migration from pvc into saliva », GPE-3rd International Congress on Green Process Engineering, 6- 8 December 2011, Kuala-Lumpur , Malaysia.
[87]	M. O. BOUSSOUM, N. BELHANECHE- BENSEMRA, "Optimization of a soaking treatment to reduce additives migration from plasticized PVC", GPE-3rd International Congress on Green Process Engineering, 6- 8 December 2011, Kuala-Lumpur, Malaysia.
[88]	N. BELHANECHE- BENSEMRA, C. ZEDDAM , "Migration of bht and its uvb products degradation from polystyrene films into fatty food stimulant", GPE-3rd International Congress on Green Process Engineering, 6- 8 December 2011, Kuala-Lumpur, Malaysia
[89]	B. BOUBEKEUR, N. BELHANECHE- BENSEMRA, V. MESARDIER, « preparation and properties PLA/Woord fiber composites», 2eme Conference International sur les materiaux et les structures en composites , 28 -30 November 2011, Oran, Algeria.

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