IN-SOURCE AND POSTIRRADIATION POLYMERIZATION OF ACENAPHTHYLENE IN THE SOLID-STATE

KUCUKYAVUZ S., ULKEM I., GOKSEL C.

POLYMER INTERNATIONAL, vol.29, no.1, pp.37-40, 1992 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 29 Issue: 1
  • Publication Date: 1992
  • Doi Number: 10.1002/pi.4990290108
  • Journal Name: POLYMER INTERNATIONAL
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.37-40
  • Middle East Technical University Affiliated: No

Abstract

Radiation-induced solid state polymerization of acenaphthylene was studied by using Co-60-gamma-rays. The extent of polymerization at room temperature reached 68% when acenaphthylene was irradiated with a dose of 2.5 MGy. Prolonged exposure to the radiation decreased the molecular weight of the polymers. The post-polymerization of acenaphthylene was found to occur at relatively high temperatures close to the melting point of acenaphthylene. Absence of an effective termination step allows the enhancement of post-polymerization at higher temperatures after a limiting conversion is accomplished.