异丁基乙烯基醚-马来酸酐共聚物合成及表征

范文编号:HG069  范文字数:10519,页数:27

摘 要：采用溶液自由基共聚合方法，合成了异丁基乙烯基醚(IBVE)与马来酸酐(MA)交替共聚物(PIBVEMA)。研究了溶剂种类、溶剂比、聚合温度、反应时间、加料方式等因素对共聚产品收率及产品特性黏度的影响。将马来酸酐和异丁基乙烯基醚混和物溶解在乙酸乙烯酯中，滴加入57℃下的环己烷(含引发剂EHP)中，合成得到异丁基乙烯基醚和马来酸酐的交替共聚物，产率在90%以上。并通过傅立叶变换红外色谱仪(FTIR)和超导核磁共振仪(NMR)表征了共聚物的结构。用乌氏黏度计测定了聚合物的黏度。结果表明，实验所得产品正是异丁基乙烯基醚－马来酸酐交替共聚物。

关键词：异丁基乙烯基醚；马来酸酐；交替共聚 ；溶液自由基聚合
 

Synthesis and Characterization of Copolymer of Isobutyl
Vinyl Ether and Maleic Anhydride

Abstract: The alternate copolymer of isobutyl vinyl ether and maleic anhydride (PIBVEMA) was synthesized by using solution radical copolymerization. A series of copolymers of isobutyl vinyl ether (IBVE) and maleic anhydride (MA) were prepared in solvents of vastly different property. The effects of solvent , colymerization temperature and polymerization time on the yield and specific viscosity of the copolymer were investigated .Meleic anhydride and isobutyl vinyl ether are dissolved in vinyl acetate，PIBVEMA was synthesized by dripping this solution into 57℃ cyclohexane and the product’s yield is over 90% .The structure of the copolymer was characterized by FTIR and 13C-NMR and the specific viscosity was determined by viscosimeter . Finally, the experiments results show that the products we’ve  produced is the alternate copolymer of isobutyl vinyl ether and maleic anhydride (PIBVEMA) .

 Key words:   isobutyl vinyl ether;   maleic  anhydride ;   alternating copolymerization ;   solution radical polymerization

目录

中文摘要...........................................................Ⅰ
Abstract............................................................Ⅱ
目录.............................................................. Ⅲ
1 绪论 1
1.1 相关研究进展 1
1.2 实验内容、目的及其意义 2
1.3溶液聚合制备马来酸酐-烷基乙烯基醚共聚物 3
1.4 本体聚合合成马来酸酐-烷基乙烯基醚共聚物 5
1.5 共聚物的改性 7
1.6 本章小结 7
2 实验部分 8
2.1 实验原料和试剂 8
2.2 实验仪器和装置 8
2.3 马来酸酐-异丁基乙烯基醚共聚物的合成 9
2.4 表征 10
3 结果与讨论 12
3.1 反应温度对产物性状的影响和引发剂的选择 12
3.2动力学研究 12
3.3 溶剂的选择 14
3.4 溶剂比的选择 15
3.5 加料方式的选择 16
3.5 共聚物的结构性能与表征 16
4 结论 21
致 谢 22
参考文献 23

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