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Functionalization of poly(ester‐urethane) surface by radiation‐induced grafting of N ‐isopropylacrylamide using conventional and reversible addition–fragmentation chain transfer‐mediated methods
Author(s) -
Walo Marta,
Przybytniak Grażyna,
Barsbay Murat,
Güven Olgun
Publication year - 2016
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.5045
Subject(s) - surface modification , raft , chain transfer , grafting , materials science , polymer chemistry , contact angle , poly(n isopropylacrylamide) , polyurethane , polymerization , copolymer , fourier transform infrared spectroscopy , attenuated total reflection , chemical engineering , reversible addition−fragmentation chain transfer polymerization , polymer , radical polymerization , composite material , engineering
Abstract 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. © 2015 Society of Chemical Industry