Zero-valent metal catalyzed removal of thiocarbonylthio end groups from RAFT-made polystyrene: producing controllable bimodal molecular weight distribution
Zero-valent metal catalyzed removal of thiocarbonylthio end groups from RAFT-made polystyrene: producing controllable bimodal molecular weight distribution
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零价金属催化从 RAFT 制造的聚苯乙烯中去除硫代羰基硫端基：产生可控的双峰分子量分布
DOI：
10.1039/c3py01327h
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发表时间：
2014-02
影响因子：
4.6
通讯作者：
Zhu, Xiulin
中科院分区：
文献类型：
--
作者：
Zhu, Jian;Zhang, Wei;Zhang, Zhengbiao;Zhu, Xiulin
This work presents a facile method for removing thiocarbonylthio end groups from RAFT-made polystyrene (PS) under the catalysis of Cu(0) or Fe(0). In Cu(0)-catalyzed cases, 2,2,6,6-tetramethylpiperidinyl-1-oxy (TEMPO) was able to promote the removal of thiocarbonylthio end groups with the production of a distinct bimodal molecular weight distribution (MWD). The chain end structure of the resultant polymer was carefully identified by the matrix-assisted laser desorption ionization time-of-flight mass spectrum. However, in the Fe(0)-catalyzed system, TEMPO and ligands were not needed for the removal of thiocarbonylthio end groups with a more efficient removal. This work provides an alternative approach for removing thiocarbonylthio end groups of RAFT-made PS as well as producing thiocarbonylthio-free PS with controllable bimodal MWD.
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影响因子：
1.7
作者：
R. Radičević;S. Kisin;I. Krakovský
通讯作者：
R. Radičević;S. Kisin;I. Krakovský
影响因子：
4.6
作者：
Li, Guang-Zhao;Randev, Rajan K.;Haddleton, David M.
通讯作者：
Haddleton, David M.
影响因子：
1.1
作者：
Till Gruendling;Till Gruendling;Mathias Dietrich;Mathias Dietrich;C. Barner‐Kowollik
通讯作者：
Till Gruendling;Till Gruendling;Mathias Dietrich;Mathias Dietrich;C. Barner‐Kowollik
影响因子：
2.5
作者：
A. M. Bivigou-Koumba;J. Kristen;A. Laschewsky;P. Müller‐Buschbaum;C. Papadakis
通讯作者：
A. M. Bivigou-Koumba;J. Kristen;A. Laschewsky;P. Müller‐Buschbaum;C. Papadakis
环境温度下零价金属催化自由基诱导的RAFT聚合物硫代羰基硫端基可调节去除/修饰
影响因子：
4.6
作者：
Guo, Kai;Wesdemiotis, Chrys;Zhang, Zhengbiao;Zhu, Xiulin
通讯作者：
Zhu, Xiulin