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.
作者
舒友
罗琼林
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)
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
