化工进展2011，Vol.30Issue(8)：1837-1840,4.
微波辅助甲基淀粉的制备及产物热性能表征
Microwave-assisted methylation of starch and thermal performance of methylated starch
摘要
Abstract
Microwave irradiation was used to reinforce the activation and methylation process of starch with dimethyl carbonate.The effects of microwave irradiation time,inorganic salt and its dosage on the methylation process were investigated,and the thermal performance of methylated starch was characterized.The results showed that the methoxyl content of methylated starch was up to 8.1%（the degree of substitution of methyl starch was equal to 0.43）at reactants ratio of m（Starch）∶m（NaCl）∶m[（CH3O）2CO] = 10∶4∶125 within 13 minutes microwave irradiation.Reaction extent was increased,reaction time was reduced significantly,but thermal stability of methyl starch decreased obviously compared with native starch.关键词
微波/碳酸二甲酯/淀粉/甲基化反应Key words
microwave/dimethyl carbonate/starch/methylation reaction分类
化学化工引用本文复制引用
侯成敏,陈玉放,李伟..微波辅助甲基淀粉的制备及产物热性能表征[J].化工进展,2011,30(8):1837-1840,4.基金项目
广州市科技攻关计划 （）
广东省中国科学院全面战略合作项目 （）
广东省自然科学基金研究团队项目 （）
