期刊
POLYMER CHEMISTRY
卷 6, 期 9, 页码 1527-1532出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4py01363h
关键词
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资金
- National Natural Science Foundation of China [51033005, 51273187, 21374107, 21474097, 21090354]
- Fundamental Research Funds for the Central Universities [WK2060200012]
- Program for New Century Excellent Talents in Universities [NCET-110882]
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.
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