PHOTOPOLYMERIZATION OF STYRENE AND METHYL-METHACRYLATE USING MACRO PHOTOINITIATORS - SYNTHESIS AND CHARACTERIZATION OF PS-PEG-PS OR PMMA-PEG-PMMA BLOCK-COPOLYMERS

CAKMAK I.

ANGEWANDTE MAKROMOLEKULARE CHEMIE, vol.231, pp.123-133, 1995 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 231
  • Publication Date: 1995
  • Doi Number: 10.1002/apmc.1995.052310111
  • Journal Name: ANGEWANDTE MAKROMOLEKULARE CHEMIE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.123-133
  • Karadeniz Technical University Affiliated: No

Abstract

Macro photoinitiators based on poly(ethylene glycol)s (PEG) bearing benzoyl xanthate moieties were synthesized by the reaction of PEG xanthates with benzoyl chloride. These macro photoinitiators possessing PEGs of different molecular weights were used in the photoinduced radical polymerization of styrene (S) and methyl methacrylate (MMA) to yield block copolymers having an inner-PEG segment. The influence of the concentration of reactants and polymerization time on the yield and intrinsic viscosities of block copolymers were also investigated. Characterization of block copolymers was carried out by fractional precipitation and IR, UV and H-1 NMR spectroscopic methods.