Novel hyperbranched polymers from transfer-dominated branching radical telomerisation (TBRT) of diacrylate taxogens†

IF 3.9 2区 化学 Q2 POLYMER SCIENCE Polymer Chemistry Pub Date : 2025-02-21 DOI:10.1039/d5py00062a
Samuel Mckeating , Corinna Smith , Oliver Penrhyn-Lowe , Sean Flynn , Stephen Wright , Pierre Chambon , Andrew Dwyer , Steve Rannard
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Abstract

Transfer-dominated Branching Radical Telomerisation (TBRT) allows the free radical homopolymerisation of multi-vinyl monomers whilst avoiding gelation. When using dimethacrylates, high molecular weight branched polyesters are formed with complete reaction of all vinyl functional groups. Here, we present the first report of TBRT using diacrylates and compare their homopolymerisation with that of analogous dimethacrylates. To establish very high molecular weight polyesters, diacrylate TBRT reactions required elevated temperatures. The reasons for this are investigated, including the use of model linear telomerisations of analogous mono-vinyl methacrylate and acrylate monomers.

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转移主导分支自由基端粒化(TBRT)的新型超支化聚合物
转移主导分支自由基端粒化(TBRT)允许自由基均聚多乙烯基单体,同时避免凝胶化。当使用二甲丙烯酸酯时,所有乙烯基官能团完全反应形成高分子量支化聚酯。在这里,我们提出了使用二丙烯酸酯的TBRT的第一份报告,并比较了它们的均聚与类似的二甲丙烯酸酯。为了建立非常高分子量的聚酯,双丙烯酸酯TBRT反应需要提高温度。其原因进行了调查,包括使用模型线性端粒类似的单体甲基丙烯酸乙烯酯和丙烯酸酯单体。
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来源期刊
Polymer Chemistry
Polymer Chemistry POLYMER SCIENCE-
CiteScore
8.60
自引率
8.70%
发文量
535
审稿时长
1.7 months
期刊介绍: 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.
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