降冰片烯二酸酐与异山梨醇酯化反应工艺研究
降冰片烯二酸酐与异山梨醇酯化反应工艺研究(任务书,开题报告,论文6800字)
摘 要
降冰片烯二酸酐主要用作环氧树脂的固化剂，适用于浇铸等。异山梨醇，作为新型生物基材料，被应用于食物、塑料、聚合物等领域。本实验以降冰片烯二酸酐与异山梨醇为反应物，分别考察浓硫酸、对甲苯磺酸、氯化亚锡为催化剂。并研究了降冰片烯二酸酐与异山梨醇使用量的比例、反应时间、催化剂占反应物重量的比例对酯化率的影响，通过实验得到反应的适宜条件。由于反应温度对反应的影响较小，且不易控制，故本实验选用温度在150°C(±15) °C以内。比较所得，最适宜的反应条件为：反应时间大约为4小时，反应物酸醇比为1:2.5，催化剂的使用量占反应物总重量的2.5%。满足以上条件时酯化率达到最高。
关键词：降冰片烯二酸酐 异山梨醇 催化剂 酯化反应 酯化率
Study on esterification of norbornene dicarboxylic anhydride with isosorbide
Abstract
Norbornene diacid is mainly used as curing agent for epoxy resin, suitable for casting and so on. Isosorbide, as a new bio-based material, is used in food, plastics, polymers and other fields. In this experiment, norbornene dicarboxylic anhydride and isosorbide as reactants, were investigated concentrated sulfuric acid, p-toluenesulfonic acid, stannous chloride as a catalyst. The effects of the ratio of norbornene dicarboxylic anhydride and isosorbide on the esterifica-tion rate were studied. The optimum conditions for the reaction were obtained by experiment. The reaction temperature is less than 150 ° C (± 15 ° C) because the reaction temperature has little effect on the reaction and is not easy to control. The most suitable reaction conditions were as follows: the reaction time was about 4 hours, the reactant alcohol ratio was 1: 2.5, and the catalyst used was 2.5% of the total weight of the reactants. Satisfy the above conditions to achieve the highest esterification rate.
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Key Words：Norbornene diacid; Isosorbide; Catalyst; Esterification reaction; Yield
目 录
摘要 I
ABSTRACT II
目录 III
第一章 文献综述 1
1.1降冰片烯二酸酐结构以及简介 1
1.1.1降冰片烯二酸酐结构 1
1.1.2降冰片烯二酸酐简介 1
1.2异山梨醇结构及简介 1
1.2.2异山梨醇简介 1
1.3直接酯化反应催化剂 2
1.3.1浓硫酸 2
1.3.2对甲苯磺酸 2
1.3.3SnCl2 3
第二章 实验部分 4
2.1 实验试剂 4
2.2 实验仪器 4
2.3 实验流程 5
2.3.1酯化反应 5
2.3.2酸值测定 5
2.3.3转化率的测定 5
第三章 结果与分析 6
3.1催化剂种类对酯化率的影响 6 [资料来源：http://Doc163.com]
3.2对甲苯磺酸对反应的影响 7
3.2.1反应时间的影响 7
3.2.2反应物酸醇摩尔比的影响 8
3.2.3催化剂用量的影响 9
3.3氯化亚锡对反应的影响 10
3.3.1反应物酸醇摩尔比的影响 10
3.3.2催化剂用量对酯化反应的影响 11
第四章结论与展望 13
4.1结论 13
4.2展望 13
参考文献 14
致谢 16
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