高分子现代实验技术(实验报告)题目:聚乙酸乙烯酯的合成、化学改性、表面及性能测试学生姓名:XXXX学号:XXXXXX所在院系:XXXXX专业名称:XXXXX级别:XXXXX指导教师:XXXXXXXX1目录摘要Abstract引言................................................................21药品及仪器........................................................31.1药品..................................................................31.2仪器..................................................................32实验部分..........................................................42.1原料的精制............................................................42.1.1乙酸乙烯酯的精制................................................42.1.2偶氮二异丁腈的精制..............................................52.2溶液聚合..............................................................62.2.1乙酸乙烯酯:偶氮二异丁腈=1525.917:1(摩尔比)....................62.2.2乙酸乙烯酯:偶氮二异丁腈=1525.917:2(摩尔比)....................82.3乳液聚合..............................................................82.4粘度法测定聚乙酸乙烯酯的黏均分子量...................................102.5聚乙酸乙烯酯的醇解...................................................152.5.1高醇解醇解度...................................................152.5.2低醇解度醇解...................................................162.6聚乙酸乙烯酯醇解度的测定.............................................163结果与讨论.......................................................173.1粘度法测聚合物分子量实验结果总结.....................................173.2X-RD实验结果总结...................................................183.3拉力实验结果总结.....................................................183.3.1木块拉力实验测试...............................................183.3.2PVAc膜和PVA膜拉力实验测试....................................203.4凝胶渗透色谱法(GPC)实验结果总结....................................213.5H1-NMR实验结果总结..................................................22总结...............................................................23参考文献...........................................................24附录表.............................................................2521浙江理工大学2015级研究生高分子现代实验技术实验报告聚乙酸乙烯酯的合成、化学改性、表面及性能测试学生:李成才(指导老师:左彪赵福刚)(浙江理工大学理学院化学系)摘要聚乙酸乙烯酯(PVAc)为常用的胶黏剂之一,以乙酸乙烯酯(VAc)为单体进行聚合,聚合方法有溶液聚合、乳液聚合。溶液聚合时改变引发剂的用量从而得到不同分子量的产物,但分子量皆在十万以下,乳液聚合则可得到分子量十万以上的产品。聚乙酸乙烯酯(PVAc)经过化学改性可得到不同产物,其中聚乙酸乙烯酯(PVAc)经过醇解可得到聚乙烯醇(PVA),醇解时改变溶剂以及催化剂碱的用量从而导致聚乙酸乙烯酯(PVAc)醇解度变化1-3。通过粘度法测其粘均分子量凝胶渗透色谱(GPC)、NMR、X-RD、拉力实验以及粘结实验对所得部分产物进行性能测试。关键词:聚乙酸乙烯酯;溶液聚合;乳液聚合;化学改性;聚乙烯醇;性能测试Synthesis、Chemistrymodification、CharacterizationandPerformanceTestingofPVAcStudent:LIChengcai(FacultyAdviser:ZUOBiao、ZHAOFugang)(DepartmentofChemistry,ZheJiangSci-TechUniversity)AbstractPolyvinylacetate(PVAc)isoneofthecommonlyusedadhesive.Inthispaper,asthemainmonomer,vinylacetate(VAc)wasusedtopreparePVAcwithsolutionpolymerizationandemulsionpolymerizationmethod.Wecancontrolthepolymermolecularweightbycha...