Abstract

Graft copolymers of natural rubber (NR) and poly-3-hydroxybutyrate (PHB) with 60:40 ratio were synthesized in chlorobenzene. Two types of initiators namely azoisobutyronitrile (AIBN) and benzoyl peroxide (BPO) AIBN and BPO were employed to initiate the free radical grafting of the two polymers. The influence of the various types of initiator loadings was also investigated. Estimation of the grafted NR was performed using FTIR. The thermal stability and crystallization behavior of NR-g-PHB was studied using thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) TGA as well as DSC respectively. The absence of the C=C peak of NR in the FTIR spectra confirmed that PHB grafted on this site after the breakage of the C=C bond. The increase in initiator loading, improved the smoothness of the NR-g-PHB. Moreover, single Tg were observed for NR-g-PHB which indicate that no phase separation occurs and the thermal stability of pristine NR after grafting was improved compared with that of NR alone.

Details

Title
Influence of the synthesis parameters on the properties of natural rubber grafted poly-3-hydroxybutyrate
Author
Asmaa Zainal Abidin 1 ; Noor Hana Hanif Abu Bakar 1 ; Roizard, Denis 2 ; Jonquieres, Anne 3 ; Arnal-Herault, Carole 3 ; Mohamad Abu Bakar 1 

 Nanoscience Research Laboratory, School of Chemical Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia 
 Laboratory of Reactions and Process Engineering, Université de Lorraine, UMR CNRS, LRGP, 7274, 1 rue Grandville, 54000 Nancy, France 
 Laboratoire de Chimie Physique Macromoléculaire, Université de Lorraine, CNRS, LCPM, ENSIC, 1 rue Grandville, BP 20451, F-54 000 Nancy, France 
Publication year
2019
Publication date
Apr 2019
Publisher
IOP Publishing
ISSN
17578981
e-ISSN
1757899X
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2560975059
Copyright
© 2019. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.