The influence of reaction temperature and reaction time on degree of esterification were investigated.
通过正交实验考察了反应时间、反应温度对聚乙烯醇酯化程度的影响。
Direct esterification will take long reaction time with low yield.
直接酯化法反应时间长，产率低。
The effects of molar ratio of anhydrous ethanol to glacial acetic acid , dosage of catalyst, reaction temperature and reaction time on the esterification ratio and reuse of catalyst were discussed.
探讨了酸醇物质的量的比，催化剂的用量，反应时间和反应温度对酯化率的影响及催化剂的重复使用情况。
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