Synthesis and characters of hyperbranched poly(vinyl acetate) by RAFT polymeraztion
Synthesis and characters of hyperbranched poly(vinyl acetate) by RAFT polymeraztion
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RAFT聚合超支化聚醋酸乙烯酯的合成及性能
DOI:
10.1016/j.eurpolymj.2011.07.002
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发表时间:
2011-10
影响因子:
6
通讯作者:
Zhu, Xiulin
中科院分区:
文献类型:
--
作者:
Zhu, Jian;Xing, Minying;Cheng, Zhenping;Zhou, Nianchen;Zhou, Xiaobo;Zhang, Zhengbiao;Zhu, Xiulin
Reversible addition-fragmentation chain transfer (RAFT) polymerization of VAc in the presence of ECTVA, which capable of both reversible chain transferable through a xanthate moiety and propagation via a vinyl group, led to highly branched copolymers by a method analogous to self-condensing vinyl polymerization (SCVP). The ECTVA acted as a vinyl acetate AB∗inimer. It was copolymerized with vinyl acetate (VAc) in ratios selected to tune the distribution and length of branches of resulting hyperbranched poly(vinyl acetate). The degree of branching increased with chain ECTVA concentration, as confirmed by NMR spectroscopy. The polymer structure was characterized via MALDI–TOF. Retention of the xanthate compound during the polymerization was evidenced by successful chain extension of a branched (PVAc) macroCTA by RAFT polymerization. The branched PVAc led to better dissolution as compared to linear PVAc, an effect attributed primarily to an increased contribution of end groups.
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DOI:
10.1002/chin.200147279
发表时间:
2001-11
期刊:
ChemInform
影响因子:
--
作者:
Krzysztof Matyjaszewski;J. Xia
通讯作者:
Krzysztof Matyjaszewski;J. Xia
影响因子:
56.9
作者:
FRECHET, JMJ;HENMI, M;GRUBBS, RB
通讯作者:
GRUBBS, RB
影响因子:
5.5
作者:
Zhongmin Wang;Junpo He;Y. Tao;Liu Yang;Hongjin Jiang;Yuliang Yang
通讯作者:
Zhongmin Wang;Junpo He;Y. Tao;Liu Yang;Hongjin Jiang;Yuliang Yang
DOI:
10.1071/ch02073
发表时间:
2002-08
期刊:
--
影响因子:
--
作者:
R. Gilbert;Stuart W. Prescott;W. Smulders;M. Monteiro;M. Ballard;E. Rizzardo
通讯作者:
R. Gilbert;Stuart W. Prescott;W. Smulders;M. Monteiro;M. Ballard;E. Rizzardo
影响因子:
5.5
作者:
A. Müller;D. Yan;M. Wulkow
通讯作者:
A. Müller;D. Yan;M. Wulkow