Grafting of a Stimuli Responsive Polymer on Nanolayered Coextruded PS/PCL Films by Surface Initiated Polymerization

Katrina D. Pangilinan, Al Christopher C de Leon, Joey Dacula Mangadlao, Eric Baer, Rigoberto C. Advincula

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

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. (Figure presented.) .

Original languageEnglish
Pages (from-to)870-875
Number of pages6
JournalMacromolecular Materials and Engineering
Volume301
Issue number7
DOIs
Publication statusPublished - 2016 Jul 1
Externally publishedYes

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Keywords

  • ATRP
  • benzophenone
  • photografting
  • photopatterning
  • PNIPAM

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

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