Preparation of Triethylene Glycol Maleate and Its Effect on Plasticization of Oxidized Starch  

作　　者：程飞 LIN Yi ZHAO Kang 朱谱新 

机构地区：[1]Textile Institute, Sichuan University, Chengdu 610065, China

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2016年第5期1167-1173,共7页武汉理工大学学报（材料科学英文版）

基　　金：Funded by Science and Technology Support Project of Sichuan Province(Nos.2014GZ0136 and 2015GZ0176);National Natural Science Foundation of China(No.51603134)

摘　　要：A plasticizer triethylene glycol maleate（TEG-MA） was synthesized. The dominated monoester of moderate hydrophobicity with apparent oil-water partition coefficient of 0.042 in the product was confirmed by acid value determination, HPLC and FTIR. Its plasticizing effect on oxidized starch was manifested by crystallization, aging behaviour, moisture absorption, and mechanical performance. X-ray diffraction data showed that the relative crystallinity of the plasticized starch decreased. Both the crystal and the crystallinity of starch films were rarely changed in aging. Moisture absorption relied on the ester content and relative humidity. The elongation at break increased significantly with plasticizer content more than 10% in the matrix.A plasticizer triethylene glycol maleate（TEG-MA） was synthesized. The dominated monoester of moderate hydrophobicity with apparent oil-water partition coefficient of 0.042 in the product was confirmed by acid value determination, HPLC and FTIR. Its plasticizing effect on oxidized starch was manifested by crystallization, aging behaviour, moisture absorption, and mechanical performance. X-ray diffraction data showed that the relative crystallinity of the plasticized starch decreased. Both the crystal and the crystallinity of starch films were rarely changed in aging. Moisture absorption relied on the ester content and relative humidity. The elongation at break increased significantly with plasticizer content more than 10% in the matrix.

关 键 词：starch plasticization triethylene glycol maleic anhydride hygroscopicity 

分 类 号：TQ414[化学工程] O636.12[理学—高分子化学]