The objective of the work was to investigate the effects of gamma irradiation at absorbed dose of 75 kGy on the chemical structure and crystallinity of PHBV/PLA blend (50/50 w/w) without and with Cloisite 30B (C30B) incorporated at 3 wt %. IRTF spectra showed that gamma irradiation induced changes in the chemical structure of PHBV/PLA blends due to oxidation reactions involving the transformation of ester groups to hydroperoxides. However, the addition of C30B in the polymer blend had no influence on the nature of the degradation process. GPC data showed that the value of the average number of chain scission (nt) of irradiated PHBV/PLA/C30B sample is lower than that of the virgin blend highlighting the role of C30B as a retardant of the chain scission mechanism. WAXS analysis indicated an increase in the crystallinity of all irradiated samples at 75 kGy.
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22 January 2019
PROCEEDINGS OF THE EUROPE/AFRICA CONFERENCE DRESDEN 2017 – POLYMER PROCESSING SOCIETY PPS
27–29 June 2017
Dresden, Germany
Research Article|
January 22 2019
The influence of gamma irradiation on the chemical structure and crystallinity of PHBV/PLA/Cloisite 30B nanocomposites
Idris Zembouai;
Idris Zembouai
1
Laboratoire des Matériaux Polymères Avancés (LMPA), Faculté de Technologie
, Université de Bejaia 06000, Algeria
2
Département de Génie des Procédés, Faculté de Technologie
, Université Saad Dahlab-Blida 1, Blida 09000, Algeria
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Mustapha Kaci;
Mustapha Kaci
a)
1
Laboratoire des Matériaux Polymères Avancés (LMPA), Faculté de Technologie
, Université de Bejaia 06000, Algeria
a)Corresponding author: [email protected]
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Stéphane Bruzaud
Stéphane Bruzaud
3
Institut de Recherche Dupuy de Lôme (IRDL)
, FRE CNRS 3744, Université de Bretagne Sud, Rue de Saint Maudé, 56321 Lorient Cedex, France
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a)Corresponding author: [email protected]
AIP Conf. Proc. 2055, 100001 (2019)
Citation
Idris Zembouai, Mustapha Kaci, Stéphane Bruzaud; The influence of gamma irradiation on the chemical structure and crystallinity of PHBV/PLA/Cloisite 30B nanocomposites. AIP Conf. Proc. 22 January 2019; 2055 (1): 100001. https://doi.org/10.1063/1.5084889
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