Dispersion redox copolymerization of methyl methacrylate with macromonomeric azoinitiator as a macrocrosslinker

Yildiz U., HAZER B.

POLYMER, vol.41, no.2, pp.539-544, 2000 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 41 Issue: 2
  • Publication Date: 2000
  • Doi Number: 10.1016/s0032-3861(99)00217-7
  • Journal Name: POLYMER
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.539-544
  • Keywords: dispersion redox copolymerization, macromonomeric azoinitiator, macroinimer, INTERPENETRATING POLYMER NETWORKS, BULK-POLYMERIZATION, STYRENE, GELATION
  • Kocaeli University Affiliated: Yes

Abstract

The dispersion copolymerization of methyl methacrylate (MMA) with macromonomeric azoinitiator, MIM-400, as a macrocrosslinker initiated by the benzoyl peroxide (BPO)/N,N'dimethylaniline (DMA) coupled in water/ethanol (4/1, v/v) at 20 degrees C was carried out to yield PEG-b-PMMA networks with labile azo linkages in the main chain. Gel fraction, swelling ratios (q(v)) and the average molecular weights between junction points (M-c) values of the networks were investigated. Maximum gel fraction was obtained using 0.133 M MIM-400, 9.2 x 10(-2) M BPO, 2.1 x 10(-2) M DMA and 2.19 M MMA. (C) 1999 Elsevier Science Ltd. All rights reserved.