GEL FORMATION IN FREE-RADICAL CROSS-LINKING COPOLYMERIZATION

NAGHASH H., OKAY O., YILDIRIM H.

JOURNAL OF APPLIED POLYMER SCIENCE, cilt.56, sa.4, ss.477-483, 1995 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 56 Sayı: 4
  • Basım Tarihi: 1995
  • Doi Numarası: 10.1002/app.1995.070560409
  • Dergi Adı: JOURNAL OF APPLIED POLYMER SCIENCE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.477-483
  • İstanbul Teknik Üniversitesi Adresli: Hayır

Özet

Polymer gels with varying amounts of crosslinker and solvent were prepared by solution free-radical crosslinking copolymerization of methyl methacrylate/ethylene glycol dimethacrylate (MMA/EGDM) and styrene/p-divinyl benzene (S/p-DVB) comonomer systems. The structural characteristics of the gels were examined using equilibrium swelling in toluene and gel fraction measurements. Experimental results were compared with the predictions of a kinetic model developed recently for free-radical crosslinking copolymerizations. Experimental data on S/EGDM networks reported by Hild, Okasha, and Rempp were also used to test this model. It was found that the model correctly predicts the development of the gel properties in free-radical crosslinking copolymerization. (C) 1995 John Wiley and Sons, Inc.