文献类型：期刊文献

中文题名：ATRP法制备纤维素-油脂-糠醛热塑性弹性体及性能表征

英文题名：Preparation and Characterization of Cellulose-fattyacid-furfural Derived Thermoplastic Elastomer via ATRP

作者：卢传巍[1,2] 王春鹏[1] 储富祥[1] 王基夫[1]

第一作者：卢传巍

机构：[1]中国林业科学研究院林产化学工业研究所生物质化学利用国家工程实验室国家林业局林产化学工程重点开放性实验室江苏省生物质能源与材料重点实验室;[2]南京林业大学江苏省林业资源高效加工利用协同创新中心

年份：2019

卷号：39

期号：1

起止页码：75-80

中文期刊名：林产化学与工业

外文期刊名：Chemistry and Industry of Forest Products

收录：CSTPCD;;Scopus;北大核心:【北大核心2017】；CSCD:【CSCD2019_2020】；

基金：国家自然科学基金资助项目(31570579);中央级公益性科研院所基本科研业务费专项资金(CAFYBB2017ZF003)

语种：中文

中文关键词：ATRP;纤维素;接枝共聚物;热塑性弹性体

外文关键词：ATRP;cellulose;graft copolymer;thermoplastic elastomer

分类号：TQ35

摘要：通过"从主链接枝"原子转移自由基聚合(ATRP)法,采用分步聚合策略,成功制备了一种乙基纤维素接枝嵌段共聚物乙基纤维素-g-甲基丙烯酸月桂酯-b-甲基丙烯酸四氢糠基酯(EC-g-P(LMA-b-THFMA))。对聚合物的热力学性能研究发现:共聚物中存在两个热转变,分别发生在-35℃和49～56℃时,表明该共聚物存在微相分离;机械性能分析表明该共聚物具有优异的热塑性弹性体行为,伸长率为89%～147%,拉伸强度为1.7～9.5 MPa。循环拉伸机械性能研究表明EC-g-P(LMA-b-THFMA200)的弹性恢复系数高达92%以上。乙基纤维素接枝共聚物的机械性能具有明显的增强作用,较线性聚合物P(LMA-b-THFMA)的机械强度提高了1.36倍。
The grafted block copolymers,ethyl cellulose-g-lauryl methacrylate-b-tetrahydrofurfuryl methacrylate(EC-g-P(LMA-b-THFMA))was successfully prepared via"grafting from"atom transfer radical polymerization(ATRP)through two-step polymerization strategy.Thermal property analysis showed that this copolymer had two thermal transitions(-35℃and 49-56℃),indicating of the presence of microphase separation in the copolymer.Mechanical property analysis showed that the copolymer had excellent thermoplastic elastomer behavior with the elongation of 89%-147%and tensile strength of 1.7-9.5 MPa.The cycilic tensile mechanical properties analysis indicated that the elastic recovery of EC-g-P(LMA-b-THFMA200)was more than 92%.Compared with the linear block polymer P(LMA-b-THFMA),it could be found that the introduction of cellulose significantly enhanced the mechanical properties of graft copolymer.The mechanical strength of graft copolymer was increased by 1.36 times while compared with that of P(LMA-b-THFMA).