論文

査読有り
2016年7月

Ring expansion-controlled radical polymerization: Synthesis of cyclic polymers and ring component quantification based on SEC-MALS analysis

REACTIVE & FUNCTIONAL POLYMERS
  • Atsushi Narumi
  • ,
  • Shuhei Hasegawa
  • ,
  • Ryo Yanagisawa
  • ,
  • Miho Tomiyama
  • ,
  • Masatsugu Yamada
  • ,
  • Wolfgang H. Binder
  • ,
  • Moriya Kikuchi
  • ,
  • Seigou Kawaguchi

104
開始ページ
1
終了ページ
8
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1016/j.reactfunctpolym.2016.04.013
出版者・発行元
ELSEVIER SCIENCE BV

We report a ring expansion vinyl polymerization producing cyclic polymers using a tetra(oxyethylene) (TOE) tethered cyclic initiator for the nitroxide-mediated controlled radical polymerization (NMP). Styrene (St) was polymerized with the cyclic NMP initiator 1 in the bulk to produce polymer 2. Structural analyses of 2 were performed by a size exclusion chromatograph equipped with a multiangle laser light scattering (SEC-MALS) detector, focusing on the relationships between the z-averaged root-mean-square radii of gyration (< S-2 >(1/2)(z)) versus the molecular weights. The results proved that 2 would consist of ring components as a result of the ring expansion polymerizations and radical ring crossover reactions together with ring-opened linear components, in which the amount of ring components increased with the increasing molecular weights. The data also enabled the quantification that approximately 13-40 wt% of the final polymer 2 could be identified as the ring species in the M-w range of 1 x 10(5)-5 x 10(5) g mol(-1) (C) 2016 Elsevier B.V. All rights reserved.

Web of Science ® 被引用回数 : 15

リンク情報
DOI
https://doi.org/10.1016/j.reactfunctpolym.2016.04.013
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000379375400001&DestApp=WOS_CPL

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