Synthesis and Thermal Properties of Etherifled Konjac Glucomannan
A novel etherified KGM (EKGM) was synthesized with Konjac glucomarman (KGM) and l-bromopropane in Lithium chloride/dimethyl sulfoxide (LiC1/DMSO). The EKGM was characterized by FT-IR, DSC and TG The IR of EKGM showed that -OH stretching vibration band decreased and the C-H and C-O-C stretching vibration bands increased comparing with the unmodified KGM, which was indicating that KGM had been etherified. The DSC thermograms showed that an obvious glass transition of EKGM appeared and its glass transition temperature (Tg) decreased with the increasing of Pr/OH ratio. And it was also found that the EKGM had a higher decomposition temperature than unmodified. Meanwhile, it was proved that the EKGM was a good hydrophobic polymer and dissolved in some organic solvent easily.
Konjac glucomannan 1-Bromopropane Thermal properties Etherification
Wu Qiang Lin Xiaoyan Luo Xuegang Chen Yan
School of Material Science and Engineering, Southwest university of Science and Technoloav, Mianvang, Sichuan, China
国际会议
10th International Symposium on Eco-Materials Processing and Design(第10届国际生态材料加工与设计研讨会)
西安
英文
197-200
2009-01-13（万方平台首次上网日期，不代表论文的发表时间）