木质素马来酸酯-醋酸乙烯酯共聚物的制备及性能  

Preparation and properties of lignin maleate-vinyl acetate copolymer

作　　者：舒友 罗琼林[2] 王铭亮 周能 苏胜培 SHU You;LUO Qionglin;WANG Mingliang;ZHOU Neng;SU Shengpei(Key Lab for Fine Processing of Resources and Advanced Materials of Hunan Province,Hunan Normal University,College of Chemistry and Chemical Engineering,Changsha 410071,China;Hunan Engineering Laboratory for Preparation Technology of Polyvinyl Alcohol Fiber Material,Huaihua University,Huaihua 418000,China;National and Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources,Hunan Normal University,Changsha 410081,China)

机构地区：[1]湖南师范大学化学化工学院,资源精细化与先进材料湖南省高校重点实验室,湖南长沙410071 [2]怀化学院聚乙烯醇纤维材料制备技术湖南工程实验室,湖南怀化418000 [3]湖南师范大学石化新材料与资源精细利用国家地方联合工程实验室,湖南长沙410081

出　　处：《邵阳学院学报（自然科学版）》2020年第1期66-72,共7页Journal of Shaoyang University：Natural Science Edition

基　　金：石化新材料与资源精细利用国家地方联合工程实验室开放基金(KF201802);湖南省自然科学基金(2019JJ50472);湖南省教育厅科学研究项目(18C0979);2019年度全国大学生创新创业训练项目

摘　　要：以木质素马来酸酯(MLignin)和醋酸乙烯酯(VAc)为原料,通过自由基聚合制备了木质素马来酸酯-醋酸乙烯酯共聚物(MLignin-VAc)。利用FT-IR,GPC,DSC及TG对共聚物的结构、相对分子量、玻璃化温度及热氧降解性能进行了测试表征。测试结果表明:MLignin-VAc红外光谱图中含MLignin和VAc特征基团吸收峰;随着MLignin含量的增加,共聚物的相对分子量逐渐减小,相对分子量分布逐渐增大,玻璃化温度逐渐上升,热氧稳定性基本保持不变。The lignin maleate-vinyl acetate copolymer(MLignin-VAc)was prepared by free radical polymerization using lignin maleate(MLignin)and vinyl acetate(VAc)as raw materials.The structure,molecular weight,glass transition temperature and thermal oxidation degradation performance of the copolymer were characterized by FT-IR,GPC,DSC and TG.The results show that the absorption peaks of Mlignin and VAc characteristic groups are contained in the infrared spectrum of Mlignin-VAc.With the increase of Mlignin content,the molecular weight of the copolymer decreases gradually,the molecular weight distribution increases gradually,the glass transition temperature increases gradually,and the thermal oxygen stability basically remains unchanged.

关 键 词：木质素 醋酸乙烯酯 共聚物 木质素马来酸酯 

分 类 号：TQ325[化学工程—合成树脂塑料工业]