文献类型：期刊文献

中文题名：马来酸酐改性油酸基聚酯多元醇的合成

英文题名：Synthesis of maleic anhydride modified oleic acid-based polyester polyols

作者：李静[1] 蒋剑春[1] 徐俊明[1] 夏海虹[1] 刘朋[1]

第一作者：李静

机构：[1]中国林业科学研究院林产化学工业研究所、国家林业局林产化学工程重点开放实验室,江苏南京210042

年份：2014

卷号：33

期号：12

起止页码：3353-3357

中文期刊名：化工进展

外文期刊名：Chemical Industry and Engineering Progress

收录：CSTPCD;;Scopus;北大核心:【北大核心2011】；CSCD:【CSCD2013_2014】；

基金：科技支撑企业后补助项目(2013BAD27Q00);江苏省自然科学基金项目(BK2011113)

语种：中文

中文关键词：生物质;聚酯多元醇;合成;改性;酯化

外文关键词：biomass;polyester polyols;synthesis;modification;esterification

分类号：TQ314

摘要：以油酸为原料,经羟基化、酸酐改性、酯化合成油酸基聚酯多元醇,考察了摩尔比、常压反应温度时间、减压反应温度时间、催化剂用量等因素对酯化反应的影响,研究了不同组合酯化试剂对多元醇性能的影响。采用红外光谱(FT-IR)、高效凝胶色谱(GPC)、热重(TGA)对多元醇的结构、相对分子质量、热稳定性进行了表征。结果表明,最佳酯化条件为醇酸比n(二甘醇)∶n(羟基油酸)=1.1∶1,催化剂Zn O量为0.8%,常压、210℃下反应90min,再在180℃下减压反应120min。
Using oleic acid as raw materials,the polyester polyols were prepared via hydroxylation, modification and esterification. The influences of reaction conditions,such as the molar ratio of alcohol and acid,atmospheric pressure reaction temperature and time,stress reaction temperature and time, the catalyst dosage,were investigated. The relationship between esterification reagent ratio and property of polyols was also studied. The infrared spectrum（IR）,gel permeation chromatograph （GPC）,and thermogravimetric analysis （TGA） were used to measure structure,molecular weight and thermal stability of the products systematically. The results showed that the optimal reaction condition was obtained as following,the used catalyst ZnO dosage was 0.8%in the raw materials,the molar ratio of alcohol and acid was 1.1∶1,the atmospheric pressure reaction time was 90min at 210℃ and stress reaction time was 120min at 180℃.