Carboxylic acids as latent initiators of radical polymerization carried out in the presence of hypervalent iodine compounds: synthesis of branched and transiently crosslinked polymers

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发布日期 2011-12-13

DOI 10.1039/C1PY00495F

影响因子 5.582

作者

Hongzhang Han, Nicolay V. Tsarevsky

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摘要

The acetoxy groups in (diacetoxyiodo)benzene, PhI(OAc)2, can exchange with methacrylic acid in various solvents yielding [(acetoxy methacryloyloxy)iodo]benzene or (dimethacryloyloxyiodo)benzene. The last two hypervalent iodine compounds can serve as inimers due to the presence of polymerizable moiety and the easy generation of radicals upon thermal or light-induced homolysis of the I–O bonds. PhI(OAc)2 was added to mixtures of methacrylic acid and methyl methacrylate, and upon heating to 80 °C, branched or transiently crosslinked polymers were formed. In homopolymerizations of methyl methacrylate initiated by PhI(OAc)2, i.e., in the absence of the monomer with carboxylic acid group, no branching or gelation was observed.

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Natural Product Research

Current Topics in Medicinal Chemistry

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来源期刊

Polymer Chemistry

CiteScore: 8.6

自引率: 7.3%

年发文量: 457

Polymer Chemistry welcomes submissions in all areas of polymer science that have a strong focus on macromolecular chemistry. Manuscripts may cover a broad range of fields, yet no direct application focus is required.

Carboxylic acids as latent initiators of radical polymerization carried out in the presence of hypervalent iodine compounds: synthesis of branched and transiently crosslinked polymers

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