Photocontrolled cationic degenerate chain transfer polymerizations via thioacetal initiators
Photocontrolled cationic degenerate chain transfer polymerizations via thioacetal initiators
复制标题
通过硫缩醛引发剂进行光控阳离子简并链转移聚合
DOI:
10.1039/d0py01100b
复制
发表时间:
2020
影响因子:
4.6
通讯作者:
Fors, Brett P.
中科院分区:
文献类型:
--
作者:
Sifri, Renee J.;Kennedy, Audrey J.;Fors, Brett P.
Recent developments in photocontrolled polymerizations have facilitated the development of previously inaccessible materials. While photocontrolled radical polymerizations have been extensively studied, related processes involving cationic polymerizations are underexplored and limited to RAFT processes. In this study, we disclose a visible light, temporally controlled cationic polymerization of vinyl ethers utilizing thioacetals and a photoredox catalyst. We demonstrate a broad scope of thioacetal initiators that achieve a well-controlled polymerization by recapping propagating chains via photocatalyst turnover in combination with a degenerate chain transfer process through sulfonium intermediates. Furthermore, we show that a photocatalyst with a more reducing ground state reduction potential allows for enhanced control and excellent temporal regulation of polymerization.
登录
查看更多内容
影响因子:
1.8
作者:
H. Kawata;Yoshizo Suzuki;S. Niizuma
通讯作者:
S. Niizuma
影响因子:
15
作者:
Messina, Marco S.;Axtell, Jonathan C.;Spokoyny, Alexander M.
通讯作者:
Spokoyny, Alexander M.
DOI:
--
发表时间:
2015
期刊:
影响因子:
--
作者:
荻原祐;中村泰之;山子茂;山子茂
通讯作者:
山子茂
影响因子:
5.5
作者:
Parker T. Boeck;Joji Tanaka;Shubin Liu;W. You
通讯作者:
Parker T. Boeck;Joji Tanaka;Shubin Liu;W. You
影响因子:
4.3
作者:
Mineto Uchiyama;Masataka Sakaguchi;K. Satoh;M. Kamigaito
通讯作者:
Mineto Uchiyama;Masataka Sakaguchi;K. Satoh;M. Kamigaito