Sequential Michael addition thiol-ene and radical-mediated thiol-ene reactions in one-pot produced sequence-ordered polymers

被引：42
|
作者：
Yu, Lei [1 ]
Wang, Long-Hai [1 ]
Hu, Zong-Tao [2 ]
You, Ye-Zi [1 ]
Wu, De-Cheng [3 ]
Hong, Chun-Yan [1 ]
机构：
[1] Univ Sci & Technol China, Dept Polymer Sci & Engn, CAS Key Lab Soft Matter Chem, Hefei 230026, Anhui, Peoples R China
[2] Tumor 105th Hosp PLA, Diagnosis & Treatment Ctr, Hefei 230031, Anhui, Peoples R China
[3] Chinese Acad Sci, Inst Chem, State Key Lab Polymer Phys & Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
来源：
POLYMER CHEMISTRY | 2015年 / 6卷 / 09期
基金：
中国国家自然科学基金;
关键词：
PERIODIC VINYL COPOLYMERS; CLICK CHEMISTRY; HYPERBRANCHED POLYMERS; CHAIN TRANSFER; YNE REACTIONS; POLYMERIZATION; ROUTE; STEP; MONOMERS; ROMP;
D O I：
10.1039/c4py01363h
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Sequential Michael addition-based thiol-ene and free radical mediated thiol-ene reactions for preparing sequence-ordered polymers are reported for the first time. The thiols are produced in situ via the ring-opening of thiolactones, and they can readily react with the electron-deficient carbon-carbon double bond of allyl methacrylate via Michael addition-based thiol-ene, but they are unable to react with the electron-rich carbon-carbon double bond of allyl methacrylate without radicals, and intermediates with thiol and alkene units are formed. After the Michael addition thiol-ene and ring-opening reactions are complete, the thiol is activated by UV irradiation, enabling reaction with the electron-rich carbon-carbon double bond via a free radical-mediated thiol-ene reaction, to form sequence-ordered polymers of high molecular weights.
引用
收藏
页码：1527 / 1532
页数：6
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