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, cilt.231, ss.123-133, 1995 (SCI İndekslerine Giren Dergi) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 231
  • Basım Tarihi: 1995
  • Doi Numarası: 10.1002/apmc.1995.052310111
  • Dergi Adı: ANGEWANDTE MAKROMOLEKULARE CHEMIE
  • Sayfa Sayıları: ss.123-133

Özet

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.