Synthesis of tetrahydrofuran-styrene and tetrahydrofuran-methyl methacrylate block copolymers via poly(tetrahydrofuran) with azo groups

Cakmak I., Ayas A.

ANGEWANDTE MAKROMOLEKULARE CHEMIE, vol.238, pp.55-62, 1996 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 238
  • Publication Date: 1996
  • Doi Number: 10.1002/apmc.1996.052380105
  • Journal Name: ANGEWANDTE MAKROMOLEKULARE CHEMIE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.55-62
  • Karadeniz Technical University Affiliated: No

Abstract

The cationic polymerization of tetrahydrofuran (THF) initiated by 4,4'-azobis(4-cyanopentanoyl chloride) (ACPC) and SnCl4 is described. Poly(THF) samples possessing azo gorups in the main chain thus obtained were used as initiator in the polymerization of styrene (S) and methyl methacrylate (MMA) at 70 degrees C to yield PTHF-PS-PTHF and PTHF-PMMA block copolymers. Characterization of the block copolymers was carried out by fractional precipitation, spectroscopic methods and viscosity measurements.