Radical Copolymerization of Spiro-substituted Cyclopentadienes

DOI Web Site Open Access
  • OHARA Osamu
    Department of Organic Synthesis, Faculty of Engineering,Kyushu University
  • ASO Chuji
    Department of Organic Synthesis, Faculty of Engineering,Kyushu University
  • KUNITAKE Toyoki
    Department of Organic Synthesis, Faculty of Engineering,Kyushu University

Bibliographic Information

Other Title
  • スピロ置換シクロペンタジエンのラジカル共重合

Search this article

Description

Radical copolymerizationsof spiro(2, 4)hepta-4, 6-diene(SHD)and spironona-1o3-diene(SND) were carried out.They gave only Diels-Alder adducts when maleic anhydride was used as comonomer, and styrene homopolymer was obtained in theprefenpe of SHD and SND. On the comonomer, other handl true copolymers viere formed when acrylonitrile(AN) and rnethacrylonitrile MAN were used as comonomers, andthe following reactivity ratios were obtained.<BR><BR>Although the radical reactivity of SHD monomer did not differ much from that of SND monomer, the structuresof these whits in copolymers were quite different. The SND unit was formed bytheconventional 1, 2- and 1, 4-additiens, while the SHD unit mainly eonsisted of the structures which were formed by the opening of the cyclopropyl ring.The structure of the SHD llnit varied slightly with comonomers. This result was discussedon the basis of the competitive monomer addition and rearrangement of the growing SHD radical.

Journal

  • NIPPON KAGAKU KAISHI

    NIPPON KAGAKU KAISHI 1973 (3), 602-610, 1973-03-10

    The Chemical Society of Japan

Keywords

Details 詳細情報について

Report a problem

Back to top