Radical Cyclopolymerization of Divinyl Ether. The Microstructure of the Polymer and the Cyclopolymerization Mechanism

Mitsuo Tsukino, Toyoki Kunitake

研究成果: Contribution to journalArticle査読

12 被引用数 (Scopus)

抄録

Radical polymerization (AIBN initiator) of divinyl ether yielded partially cyclized, soluble polymers. The pendent vinyloxy group could be completely removed by treating the polymers with 2% hydrochloric acid in methanol. Based on 13C-NMR spectra of these polymers, the original polymer was concluded to contain a five-membered monocyclic unit with the pendent vinyloxy group and a bicyclic unit (dioxobicyclo[3.3.0]octane system) in the 1:1 ratio. The carbon chemical shifts expected for all the possible stereoisomers of these structural units were estimated using a number of model compounds. Apparently a single stereoisomer was formed for both the monocyclic unit (trans ring closure) and the bicyclic unit (with the trans junction). Finally, the steric course of the cyclopolymerization was compared with those of the related systems.

本文言語英語
ページ(範囲)387-391
ページ数5
ジャーナルMacromolecules
12
3
DOI
出版ステータス出版済み - 1979

All Science Journal Classification (ASJC) codes

  • 有機化学
  • ポリマーおよびプラスチック
  • 無機化学
  • 材料化学

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