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2011年 第5卷 第1期

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《化学科学与工程前沿（英文）》 >> 2011年 第5卷 第1期 doi: 10.1007/s11705-010-0534-5

Preparation of starch esters with crosslinking structures derived from dianhydride

School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou 450001, China

发布日期： 2011-03-05
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摘要

Starch is a kind of natural polymer used in many industrial fields because of its low cost, availability and biodegradation. Potato starch was modified by esterification with pyromellitic dianhydride, and the products were obtained with crosslinking structures. Orthogonal experiments showed that reactive temperature was the primary influencing factor. The product prepared at 40°C for 3 h with the mass ratio of starch and dianhydride of 16∶1 and pH value of 7.5 exhibited a degree of substitution of 11%. FTIR and UV analysis verified the formation of starch esters.

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