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 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 238
  • Publication Date: 1996
  • Doi Number: 10.1002/apmc.1996.052380105
  • Title of Journal : ANGEWANDTE MAKROMOLEKULARE CHEMIE
  • Page Numbers: pp.55-62

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.