Functionalization of poly(ester-urethane) surface by radiation-induced grafting of N-isopropylacrylamide using conventional and reversible addition-fragmentation chain transfer-mediated methods

WALO M., PRZYBYTNIAK G., BARSBAY M., GUVEN O.

POLYMER INTERNATIONAL, cilt.65, sa.2, ss.192-199, 2016 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 65 Sayı: 2
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1002/pi.5045
  • Dergi Adı: POLYMER INTERNATIONAL
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.192-199
  • Anahtar Kelimeler: radiation-induced grafting, poly(ester-urethane), N-isopropylacrylamide (NIPAAm), reversible addition-fragmentation chain transfer (RAFT) polymerization, FREE-RADICAL POLYMERIZATION, CO-60 GAMMA-IRRADIATION, RAFT POLYMERIZATION, METHACRYLATE) PHEMA, IONIZING-RADIATION, TEMPERATURE, COPOLYMERS, MEMBRANES, STYRENE, CELLULOSE
  • Hacettepe Üniversitesi Adresli: Evet

Özet

The functionalization of poly(ester-urethane) (PUR) surface was conducted using radiation-induced grafting. A thermosensitive layer constructed from N-isopropylacrylamide (NIPAAm) was introduced onto a polyurethane film and characterized using attenuated total reflection Fourier transform infrared and X-ray photoelectron spectroscopies and contact angle measurements. Size exclusion chromatography was used to analyse the PUR-graft-PNIPAAm copolymers and homopolymers formed in solution. Additionally, reversible addition-fragmentation chain transfer (RAFT) polymerization was performed in order to obtain PNIPAAm-grafted surfaces with well-defined properties. Atomic force microscopy was used to evaluate the surfaces synthesized via conventional and RAFT-mediated grafting methods. The results of various techniques confirmed the successful grafting of NIPAAm from PUR film. (C) 2015 Society of Chemical Industry