马来酸酐与三羟甲基丙烷酯化反应  

Esterification of Maleic Anhydride with Trimethylpropane

作　　者：柴玉叶[1] 万祥祥[1] 兰云军[1] 张淑芬[2] 

机构地区：[1]温州大学浙江省皮革工程重点实验室,浙江温州325027 [2]大连理工大学精细化工国家重点实验室,辽宁大连116012

出　　处：《精细化工》2011年第10期995-998,共4页Fine Chemicals

基　　金：浙江省自然科学基金项目(Y4090145);浙江省科技厅公益技术研究工业项目(2010C31072);温州大学博士科研基金~~

摘　　要：用马来酸酐(MA)与三羟甲基丙烷(TMP)经酯化反应制备系列三羟甲基丙烷马来酸单酯(TMPMs)。重点考察投料比、反应温度、时间、催化剂等对酯化反应的影响。结果表明,90℃下,n(MA)∶n(TMP)低于2.5∶1时,在240 min内MA单酯化率可达99%以上;n(MA)∶n(TMP)=3∶1时,需添加占单体总质量0.2%的对甲苯磺酸催化剂,MA酯化率方可达99%以上。采用NMR对产物的结构和组成进行表征和分析,通过酯化率计算其平均双键官能度。Trimethylolpropane maleates（TMPMs） were prepared by esterification of trimethylolpropane （TMP） with maleic anhydride（MA）. The effect of feed ratio, temperature, reaction time and catalyst on the esterification reaction was studied, and the results indicate that the esterification rate of MA could reach more than 99% with n（MA）：n（TMP） lower than 2.5：1 under 90℃ for 240 rain, while the esterification rate of MA could reach more than 99% with n（MA）：n（TMP） = 3：1 under 90 ℃ for 240 rain only when toluene-p-sulfonic acid was used as catalyst which accounted for 0. 2% of the total mass of the monomer. Catalyst addition was conducive to the increase of esterification rate of MA, which could reach over 99% without diesterification of MA. The structure and composition of TMPMs were characterized and analyzed by means of NMR, and the average double bond functionality （ADF） of TMPMs were calculated by esterification rate.

关 键 词：烯类支化单体 三羟甲基丙烷 马来酸酐 酯化反应 皮革化学品 

分 类 号：TQ225.24[化学工程—有机化工] O621.256.4[理学—有机化学]