Radical cyclopolymerization of divinyl acetals—structure variation with polymerization conditions

Mitsuo Tsukino, Toyoki Kunitake

研究成果: ジャーナルへの寄稿記事

4 引用 (Scopus)

抄録

Radical polymerizations of divinyl formal, acetaldehyde divinyl acetal, and acetone divinyl acetal were conducted under a series of conditions, and the microstructures of the cyclopolymers obtained were examined by 1H NMR and 13C NMR spectroscopies. The cyclopolymers contained cis-dioxolane units as the major structure along with other minor structures such as the pendant dioxolane unit and trans-dioxolane unit. The content of the major structure increased with lowering polymerization temperature and increasing monomer concentration. The uncyclized unit and the six-membered dioxane ring were not formed under any condition. The propagation steps included cyclization and isomerization in addition to monomer addition and are discussed on the basis of variation in polymer structure with polymerization conditions. The methyl substitution at the acetal carbon lowers isomerization of the cyclized radical.

元の言語英語
ページ(範囲)943-951
ページ数9
ジャーナルPolymer Journal
17
発行部数8
DOI
出版物ステータス出版済み - 1 1 1985

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Acetals
Isomerization
Monomers
Polymerization
Acetaldehyde
Cyclization
Free radical polymerization
Acetone
Nuclear magnetic resonance spectroscopy
Substitution reactions
Nuclear magnetic resonance
Microstructure
Carbon
Polymers
Temperature
formal glycol
1,3-butadiene

All Science Journal Classification (ASJC) codes

  • Polymers and Plastics
  • Materials Chemistry

これを引用

Radical cyclopolymerization of divinyl acetals—structure variation with polymerization conditions. / Tsukino, Mitsuo; Kunitake, Toyoki.

:: Polymer Journal, 巻 17, 番号 8, 01.01.1985, p. 943-951.

研究成果: ジャーナルへの寄稿記事

Tsukino, Mitsuo ; Kunitake, Toyoki. / Radical cyclopolymerization of divinyl acetals—structure variation with polymerization conditions. :: Polymer Journal. 1985 ; 巻 17, 番号 8. pp. 943-951.
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