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Please use this identifier to cite or link to this item: http://repository.li.mahidol.ac.th/dspace/handle/123456789/40919
Title: Polylactic acid glycolysate as a cross-linker for epoxidized natural rubber
Authors: Phrutsadee Sukpuang
Mantana Opaprakasit
Atitsa Petchsuk
Pramuan Tangboriboonrat
Punchapat Sojikul
Pakorn Opaprakasit
Chulalongkorn University
Thailand National Science and Technology Development Agency
Mahidol University
Thammasat University
Keywords: Materials Science
Issue Date: 1-Mar-2016
Citation: Journal of Elastomers and Plastics. Vol.48, No.2 (2016), 105-121
Abstract: © SAGE Publications. Hydroxyl-capped polylactic acid (PLA) oligomers are prepared by glycolysis reaction of PLA with ethylene glycol (EG) and used as a macromolecular cross-linker for epoxidized natural rubber (ENR). The glycolyzed PLA (GPLA) with three different molecular weights (2000, 10,000, and 44,000 g mol-1) are prepared by varying the glycolysis conditions. Effects of GPLA chain lengths and GPLA/ENR feed ratios on cross-linking efficiency, chemical structures, and physical properties of the cured products are investigated. The cross-linking efficiency is examined using a moving die rheometer, solvent fractionation, thermogravimetric analysis, and Fourier transform infrared spectroscopy. Optimum GPLA/ENR compositions for the curing reaction range from 20 wt% to 33 wt%, depending on the GPLA chain length. Because of their biodegradability, biocompatibility, and the ability to tune up their structures and properties, the cured rubber materials have high potential for use in various biomedical applications.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84959278542&origin=inward
http://repository.li.mahidol.ac.th/dspace/handle/123456789/40919
ISSN: 15308006
00952443
Appears in Collections:Scopus 2016-2017

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