PHOTOSENSITIZED FREE-RADICAL POLYMERIZATION USING PYRIDINIUM SALTS

KAYAMAN N., ONEN A., YAGCI Y., SCHNABEL W.

POLYMER BULLETIN, cilt.32, ss.589-596, 1994 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 32
  • Basım Tarihi: 1994
  • Doi Numarası: 10.1007/bf00973906
  • Dergi Adı: POLYMER BULLETIN
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.589-596
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

The polymerization of methyl methacrylate (MMA), ethyl acrylate (EA) , styrene (St) and 2-vinyl pyridine (VP) is initiated upon irradiation at lambda>350 nm of dichloromethane solutions containing N-ethoxy-2-methylpyridinium hexafluorophosphate (EMP+PF6-) and anthracene or thioxanthone. Initiation mechanisms involving the formation of ethoxyl radicals during the decomposition of EMP+ ions via electron transfer are proposed.