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タイトル: | One-Step Synthesis of Dendritic Highly Branched Polystyrenes by Organotellurium-Mediated Copolymerization of Styrene and a Dienyl Telluride Monomer |
著者: | Lu, Yangtian Yamago, Shigeru https://orcid.org/0000-0002-4112-7249 (unconfirmed) |
著者名の別形: | 山子, 茂 |
キーワード: | control radical polymerization dienyl telluride hyperbranched polymer TERP |
発行日: | 18-Mar-2019 |
出版者: | Wiley-VCH Verlag |
誌名: | Angewandte Chemie International Edition |
巻: | 58 |
号: | 12 |
開始ページ: | 3952 |
終了ページ: | 3956 |
抄録: | Dendritic highly branched polystyrenes (HB‐PSts) were prepared by a one‐step copolymerization of dienyl telluride 6 and St in the presence of organotellurium chain transfer agent 2. The molecular weight (MW), dendritic generation, and branching density were easily controlled by the ratio of 2 to 6 to styrene (St) with maintaining monodispersity. The branching efficiency estimated by a deuterium‐labeling experiment showed that 6 quantitatively (>95 %) served as the branching point. The end group fidelity was high (ca. 90 %) as determined by the end group transformation to pyrene‐derivative. Intrinsic viscosity of the HP‐polystyrenes was significantly lower than that of linear polystyrenes and were easily tuned by the branching number and branching density. The method is compatible of various functional groups and chloro and acetoxy‐substituted styrenes were also used as a comonomer. A tadpole block copolymer was also synthesized starting from linear PSt as a macroinitiator. |
著作権等: | This is the peer reviewed version of the following article: Y. Lu, S. Yamago, Angew. Chem. Int. Ed. 2019, 58, 3952., which has been published in final form at https://doi.org/10.1002/anie.201814566. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. The full-text file will be made open to the public on 18 March 2020 in accordance with publisher's 'Terms and Conditions for Self-Archiving'. This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 |
URI: | http://hdl.handle.net/2433/237368 |
DOI(出版社版): | 10.1002/anie.201814566 |
PubMed ID: | 30697891 |
出現コレクション: | 学術雑誌掲載論文等 |
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