林产化学与工业2009，Vol.29Issue(5)：16-22,7.
马来松香木薯淀粉酯的微波合成
Microwave-assisted Synthesis of Maleated Rosin-cassava Starch Ester
摘要
Abstract
Maleated rosin-cassava starch esters (MRCSE) of different degree of substitution (D_s) were synthesized by O-acylation of cassava starch with maleopimaric acid chloride (MPA-Cl) under microwave irradiation.By single factor experimentation,the optimal conditions for the synthesis of MRCSE were obtained as follows: cassava starch 0.5g,MPA-Cl 3.4g,reaction time 1.5h,reaction temperature 110℃,microwave power 700W,pyridine amount 25mL,activation time of cassava starch 1.5h,and molar ratio 1∶ 1 (maleated rosin chloride to the hydroxyl group per D-glucose unit).The resulted MRCSE was characterized by means of FT-IR,NMR,XRD,and elemental analysis.Also,the effect of reaction conditions on the D_s of MRCSE has been studied.The intrinsic viscosity and solubility of MRCSE with D_s value of 0.170 were measured.The results showed that the modified starch esters have lower intrinsic viscosity and better solubility than the raw cassava starch,especially water-solubility,indicating that MRCSE is a novel water-soluble starch derivative.关键词
马来松香/木薯淀粉/马来松香木薯淀粉酯/微波辐射Key words
maleated rosin/cassava starch/maleated rosin-cassava starch ester/microwave irradiation分类
化学化工引用本文复制引用
段文贵,方华祥,马欢歌,李光华,岑波..马来松香木薯淀粉酯的微波合成[J].林产化学与工业,2009,29(5):16-22,7.基金项目
广西科学基金资助项目(桂科自0640005) （桂科自0640005）
广西林产化学品开发与应用重点实验室开放基金资助项目(GXFC08 - 04) （GXFC08 - 04）
