期刊论文

中文

中南林业科技大学学报

1673-923X

2010

30

12

138-141,155

10.14067/j.cnki.1673-923x.2010.12.008

国家科技部林业公益性行业科研专项（200904023）；

本校为第一机构

桐油是我国重要的林产生物质资源,开发桐油下游产品,提高桐油经济附加值具有重要的意义.由桐油经酯交换合成了桐酸甲酯,采用树脂催化法在溶液中合成了桐酸甲酯-马来酸酐加合物(MEMAA),考察了不同催化树脂种类、树脂用量、反应时间、物料配比等因素对MEMAA收率的影响.结果表明:DT-851为桐酸甲酯与马来酸酐加成反应的适宜催化树脂,当桐酸甲酯用量为20 g时,桐酸甲酯与马来酸酐摩尔物料比为1:1.3,催化树脂用量为4 g,反应介质甲苯用量为100 ml.,回流反应10 h,所得MEMAA总收率为76.9%(以桐油计).树脂催化溶液法合成MEMAA具有收率高、产物易分离纯化、反应条件温和、树脂可反复使用等特点.

Tung oil is an important forestry biomass resource.Developing Tung oil＇s downstream products and improving Tung oil＇s economic value-added are of great significance.Methyl-α-eleostearate was synthesized from Tung oil by transesterification and then,Methyl-α-Eleostearate-Maleic Anhydride Adduct（MEMAA） was synthesized by resin catalysis method in toluene.The influences of catalytic resin type,resin dosage,reaction duration and material mole ratio on MEMAA were investigated.Experimental results show that DT-851 catalytic resin was suitable f...