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

页码：1527 / 1532

页数：6

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