Stéphane Bruzaud, Shima Shayanfar, Jean-Luc Audic, Isabelle Pillin, Idris Zembouai, Mustapha Kaci, Suresh D. Pillai, Laboratoire des Matériaux Organiques (LMO), Faculté de la Technologie, Université Abderrahmane Mira, Bejaia, 06000, Algeria, Université Abderrahmane Mira, Université de Saâd Dahlab [Blida] (USDB ), Laboratoire d'Ingénierie des Matériaux de Bretagne (LIMATB), Université de Bretagne Sud (UBS)-Université de Brest (UBO)-Institut Brestois du Numérique et des Mathématiques (IBNM), Université de Brest (UBO)-Université de Brest (UBO), Institut des Sciences Chimiques de Rennes (ISCR), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), National Center for Electron Beam Research, TEXAS A&M University, Texas A&M University System, The authors would like to thank the International Atomic Energy Agency (IAEA)- Vienna (Austria) through the Research Contract n°17692/R3 and they are also grateful to EGIDE through the TASSILI program 12 MDU 871 for its financial support in this collaborative project. The authors are pleased to express their grateful acknowledgements to Dr. Alain Bourmaud, Antoine Kervoelen, Anthony Magueresse and Françoise Peresse for their help in the experimental work. Thanks to A.V. Buys from the University of Pretoria (South Africa) for performing TEM analysis. Funds from the Texas A&MAgriLife Research project H8708 were used as part of this project in the eBeam irradiation studies., Université Abderrahmane Mira [Béjaïa], Université Saâd Dahlab Blida 1 (UB1), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), and Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)
International audience; The present article reports a study of oxidative degradation under eBeam irradiation of neat PHBV, neat PLA and PHBV/PLA blend (50/50 w/w) with and without Cloisite 30B (C30B) (3 wt%) at absorbed doses of 1 and 10 kGy. The changes in the chemical structure, the molecular weight, the thermal, mechanical and barrier properties as well as the morphology were evaluated. The data showed that eBeam irradiation of PHBV/PLA blend leads to oxidation reactions involving ester groups in both neat PLA and neat PHBV resulting in the formation of hydroperoxides groups. The presence of C30B in the polymer blend has no influence on the nature of the degradation process. However, the good dispersion of C30B nanoparticles provides more stability to the molar mass and the thermal, mechanical and barrier properties of PHBV/PLA blend. At absorbed dose of 10 kGy, the irradiated samples are completely safe. Furthermore, ecotoxicity testing of both non irradiated and irradiated samples clearly showed no toxicity