期刊
POLYMER CHEMISTRY
卷 12, 期 7, 页码 983-990出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0py01691h
关键词
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资金
- National Natural Science Foundation of China [21871200]
- Priority Academic Program Development (PAPD) of Jiangsu Higher Education Institutions, Educational Commission of Jiangsu Province of China [17KJA150008]
- Program of Innovative Research Team of Soochow University
A living cationic polymerization of vinyl ethers was developed using electrophilic selenium reagents as initiators and pentacarbonylbromomanganese as the catalyst. This polymerization could be conducted under ambient conditions and yielded polymers with controlled molecular weights and narrow molecular weight distributions. The method also allowed for the introduction of different selenium-containing structures into the polymers.
We present a living cationic polymerization of vinyl ethers utilizing electrophilic selenium reagents as initiators and pentacarbonylbromomanganese (Mn(CO)(5)Br) as the catalyst. The polymerization could be carried out under ambient conditions, i.e. no strict purification of reagents, non-inert atmosphere and room temperature. Poly(vinyl ether)s were obtained with controlled molecular weights while maintaining narrow molecular weight distributions (D < 1.2). In this way, different selenium-containing structures could be introduced into chain ends of polymers by using suitable electrophilic selenium reagents. Poly(styrene) prepared by atom transfer radical polymerization (ATRP) followed by brominated selenization was further utilized as a macro-initiator to form the corresponding poly(styrene)-b-poly(isobutyl vinyl ether) copolymers, which offered a new avenue for mechanism transformation polymerization.
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