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Grafting of a Stimuli Responsive Polymer on Nanolayered Coextruded PS/PCL Films by Surface Initiated Polymerization
Author(s) -
Pangilinan Katrina D.,
de Leon Al Christopher C.,
Mangadlao Joey Dacula,
Baer Eric,
Advincula Rigoberto C.
Publication year - 2016
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.201600019
Subject(s) - materials science , atom transfer radical polymerization , polymer brush , polystyrene , polymer chemistry , polymerization , contact angle , fourier transform infrared spectroscopy , polycaprolactone , polymer , grafting , x ray photoelectron spectroscopy , chemical engineering , radical polymerization , composite material , engineering
A simple method of preparing stimuli‐responsive polystyrene (PS)/polycaprolactone (PCL) nanolayered films with by growing poly( N ‐isopropylacrylamide) (PNIPAM) brush on the surface by surface‐initiated polymerization is reported. Atom transfer radical polymerization (ATRP) initiator with a benzophenone moiety is attached onto the surface by UV irradiation. After ATRP polymerization, PNIPAM brush films with varying thicknesses are produced. X‐ray photoelectron spectroscopy (XPS) confirms the successful deposition of initiator and grafting of the polymer. Moreover, the behavior of the brush film as a function of temperature is demonstrated by contact angle experiments. Photopatterning is also achieved by using a photomask and is confirmed by Fourier Transform Infrared (FTIR) imaging.