Surface modification of UV-cured epoxy resins by click chemistry

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YÜKSEL DURMAZ Y., Sangermano M., Yağcı Y.

Journal of Polymer Science, Part A: Polymer Chemistry, cilt.48, sa.13, ss.2862-2868, 2010 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 48 Sayı: 13
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1002/pola.24063
  • Dergi Adı: Journal of Polymer Science, Part A: Polymer Chemistry
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.2862-2868
  • Anahtar Kelimeler: Click chemistry, Epoxy resin, Hydrophilic polymers, Hydrophilicity, Modification, Photopolymerization, Surface modification, Uv curing
  • İstanbul Medipol Üniversitesi Adresli: Evet

Özet

A novel method for surface modification of UV-cured epoxy network was described. Photoinitiated cationic copolymerization of a bisepoxide, namely 3,4-epoxy cyclohexylmethyl 3,4-epoxycyclohexanecarboxylate (EEC) with epibromohydrine (EBH) by using a cationic photoinitiator, [4-(2-methylpropyl) phenyl]4-methylphenyl-iodonium hexafluorophosphate, in propylene carbonate solution was studied. The real-time Fourier transform infrared spectroscopic, gel content determination and thermal characterization studies revealed that both EEC and EBH monomers take part in the polymerization and epoxy network possessing bromomethyl functional groups was obtained. The bromine functions of the cured product formed on the glass sur-face were converted to azide functionalities with sodium azide. Independently prepared alkyne functional poly(ethylene glycol) (PEG) was subsequently anchored to azide-modified epoxy surface by a "click" reaction. Surface modification of the network through incorporation of hydrophilic PEG chain was evidenced by contact angle measurements. © 2010 Wiley Periodicals, Inc.