[1]杨宏军,柏涛,薛小强,等.含悬垂双键超支化聚合物的一步法合成[J].常州大学学报(自然科学版),2016,(02):14-19.[doi:10.3969/j.issn.2095-0411.2016.02.003]
　YANG Hongjun,BAI Tao,XUE Xiaoqiang,et al.OnePot Synthesis of Hyperbranched Polymers with Pendant Vinyl Bonds[J].Journal of Changzhou University(Natural Science Edition),2016,(02):14-19.[doi:10.3969/j.issn.2095-0411.2016.02.003]
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含悬垂双键超支化聚合物的一步法合成()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
期数:
2016年02期
页码:
14-19
栏目:
材料科学与工程
出版日期:
2016-03-30

文章信息/Info

Title:
OnePot Synthesis of Hyperbranched Polymers with Pendant Vinyl Bonds
作者:
杨宏军; 柏涛; 薛小强; 黄文艳; 蒋必彪
江苏省材料表面科学与技术重点实验室, 江苏 常州 213164;常州大学 材料科学与工程学院， 江苏 常州 213164
Author(s):
YANG Hongjun;  BAI Tao;  XUE Xiaoqiang;  HUANG Wenyan;  JIANG Bibiao
Jiangsu Key Laboratory of Material surface technology, Changzhou 213164,China; School of Materials Science and Engineering, Changzhou University, Changzhou 213164, China
关键词:
超支化聚合物; 自缩合阴离子聚合; 甲基丙烯酸烯丙酯; 悬垂双键
Keywords:
hyperbranched polymer;  selfcondensing anionic polymerization;  allyl methacrylate;  pendant vinyl groups
分类号:
TQ 316334
DOI:
10.3969/j.issn.2095-0411.2016.02.003
文献标志码:
A
摘要:
以膦腈碱(tBuP4)为催化剂,甲基丙烯酸羟乙酯(HEMA)为自引发单体,甲基丙烯酸烯丙酯(AMA)为共聚单体,通过自缩合阴离子聚合反应,在室温下一步法合成含悬垂双键的超支化聚合物。用核磁(H NMR)、三检测体积排阻色谱仪(TDSEC)、示差扫描量热仪(DSC)和热失重分析仪(TGA)对聚合物结构和性能进行测试和表征。结果表明,tBuP4能在常温下催化HEMA和AMA的自缩合阴离子共聚合,制备含悬垂双键的超支化聚合物。反应过程中AMA单体转化率高达95％,体系无交联。合成支化聚合物的玻璃化转变温度约为304℃,其特性黏度小于同分子质量的线型聚合物,其Zimm支化因子g的值小于1。
Abstract:
Hyperbranched polymers with pendant vinyl groups were synthesized in one step by the selfcondensing anionic copolymerization of allyl methacrylate (AMA) and 2hydroethyl methacrylate (HEMA) using tBuP4 as catalyst. The structure and performance of the resulted copolymers have been characterized by nuclear magnetic resonance spectroscopy (NMR), triple detection size exclusion chromatography (TDSEC), differential scanning calorimetry (DSC) and themogravimetric analysis (TGA). The results show that tBuP4 is effective for the copolymerization of AMA and HEMA with a very high monomer conversion. The resulted hyperbranched copolymer exhibited a lower viscosity than their linear analogues with the similar molecular weight. Its glass transition temperature was about 304℃, lower than that of linear polymer. The branching factor g was less than 1 for the whole fractions of the branching polymer.

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备注/Memo

备注/Memo:
收稿日期：20150522。基金项目：国家自然科学青年基金项目(21304010);江苏省自然科学青年基金项目(SBK201342994);常州大学科技创新基金项目(ZMF13020026)。作者简介：杨宏军(1983—),男,山西阳泉人,博士,讲师,主要从事聚合物的合成与应用研究。通讯联系人:蒋必彪(1964—),Email: jiangbibiao@cczu.edu.cn
更新日期/Last Update: 2016-03-20