|
Author(s): |
Xue-qiong Yin, Ministry of Education Key Laboratory of Application Technology of Hainan Superior Resources Chemical Materials, Hainan university,
Ye-ting Lin, Ministry of Education Key Laboratory of Application Technology of Hainan Superior Resources Chemical Materials, Hainan university,
Qin He, Ministry of Education Key Laboratory of Application Technology of Hainan Superior Resources Chemical Materials, Hainan university,
Yang Cao, Ministry of Education Key Laboratory of Application Technology of Hainan Superior Resources Chemical Materials, Hainan university,
Jiang Wang, Ministry of Education Key Laboratory of Application Technology of Hainan Superior Resources Chemical Materials, Hainan university, |
|
Abstract: |
In this paper，cassava starch laurate was put through in situ activation of lauric acid with p-toluenesulfonyl chloride in pyridine. Starch laurate (SI) was characterized with FTIR spectra. DS of SI arranges from 0.53 to 2.72 with the variation of molar ratio of lauric acid and cassava starch (1.14: 1, 2.28: 1, 4.55: 1, 9.11: 1 mol/mol AGU), reaction time (2 h, 3 h, 4 h), and reaction temperature (80°C, 90°C, 100°C, 110°C). The highest DS 2.72 was obtained at the following conditions: molar ratio of lauric acid and cassava starch being 4.55: 1 mol/ mol, reacted for 3 h at 100 ℃.
|