CAJ | 학술논문

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ZnO量为0.8%，常压、210℃下反应90min，再在180℃下减压反应120min。
이유산위원료，경간기화、산항개성、지화합성유산기취지다원순，고찰료마이비、상압반응온도시간、감압반응온도시간、최화제용량등인소대지화반응적영향，연구료불동조합지화시제대다원순성능적영향。채용홍외광보（FT-IR）、고효응효색보（GPC）、열중（TGA）대다원순적결구、상대분자질량、열은정성진행료표정。결과표명，최가지화조건위순산비n(이감순)∶n(간기유산)=1.1∶1，최화제ZnO량위0.8%，상압、210℃하반응90min，재재180℃하감압반응120min。
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℃.