Toyoki Kunitake, Takeharu Ochiai, Osamu Ohara

研究成果: Contribution to journalArticle

7 引用 (Scopus)


In the reported program, spiro left bracket 2,4 right bracket hepta-4. 6-diene, a derivative of cyclopentadiene, was polymerized at minus 76 degree C with various triphenylmethyl salts as initiator. The polymer consists only of the 1,2- and 1,4-addition structures, and their contents can be determined by the relative area of the olefin proton peaks. The polymer structure changed characteristically with the polymerization conditions. The content of 1,4-structure decreased with increasing polarity of the medium from 45-70 in toluene to 25-30% in 7:3 CH//2Cl//2-CH//3CN. In 1:1 CH//2Cl//2-toluene, the 1,4-structure content decreased tom 70% to 40% with increasing radii of counteranions. These results were interpreted according to the model of the cationic propagation proposed earlier, as arising from the different tightness of the propagating ion pair.

ジャーナルJ Polym Sci Polym Chem Ed
出版物ステータス出版済み - 1 1 1975

All Science Journal Classification (ASJC) codes

  • Engineering(all)

フィンガープリント 2,4.' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

  • これを引用

    Kunitake, T., Ochiai, T., & Ohara, O. (1975). 2,4. J Polym Sci Polym Chem Ed, 13(11), 2581-2590.