化工进展2017，Vol.36Issue(1)：40-46,7.DOI:10.16085/j.issn.1000-6613.2017.01.005
凝胶色谱与紫外分析桐油甲酯D-A反应的研究
Study on conversion rate of methyl ester D-A reaction by gel chromatography and UV analysis
摘要
Abstract
Tung oil with conjugated fatty acids and diisooctyl maleate were employed as raw materials to study the synthetic process of C22-tricarboxylic diisooctyl-monomethyl ester and conversion rate calculation of D-A reaction of methyl eleostearate and diisooctyl maleate. Three test methods were used including analysis of yield,gel chromatography,and ultraviolet. The test results showed that all three methods can be used to evaluate the progress of D-A reaction. However,the yield measurement was least accurate. The gel chromatography was the most precise to calculate conversion rate. The UV method could calculate the 270nm absorption reaction progress but the calculation results was too high. The UV method was able to use the band absorption characteristics to judge the reaction type effectively. Combining the analytical results from the gel chromatography and UV concluded that the optimum technological conditions were:the molar ratio of tung oil methyl ester to diisooctyl maleate is 1∶1,the reaction temperature is 220℃,reaction time is 5h,and the conversion of tung oil methyl ester can be up to 97.4%.关键词
D-A反应/凝胶色谱/紫外/桐油/增塑剂Key words
D-A reaction/gel chromatography/UV/tung oil/plasticize分类
化学化工引用本文复制引用
李科,蒋剑春,聂小安,陈洁,黄金瑞,陈水根..凝胶色谱与紫外分析桐油甲酯D-A反应的研究[J].化工进展,2017,36(1):40-46,7.基金项目
中央级公益性科研院所基本科研业务费专项（CAFYBB2014MA011）及江苏省生物质绿色燃料与化学品重点实验室项目（JSBGFU14007）。 （）
