Thermally switchable thin films of an ABC triblock copolymer of poly(n-butyl methacrylate)-poly(methyl methacrylate)-poly(2-fluoroethyl methacrylate)

Shanju Zhang, Zhan Liu, David G. Bucknall, Lihong He, Kunlun Hong, Jimmy W. Mays, Mark G. Allen

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The thermo-responsive behavior of polymer films consisting of novel linear triblock copolymers of poly(n-butyl methacrylate)-poly(methyl methacrylate)-poly(2-fluoroethyl methacrylate) (PnBuMA-PMMA-P2FEMA) are reported using differential scanning calorimetry (DSC), atomic forcing microscopy (AFM), X-ray photoelectron spectroscopy (XPS) and contacting angle (CA) measurements. The surface morphology, wettability and chemical structure of thin films of these triblock copolymers on silicon wafers as a function of temperature have been investigated. It has been shown that the wettability of the films is thermally switchable. Detailed structural analysis shows that thermo-responsive surface composition changes are produced. The underlying mechanism of the thermoresponsive behavior is discussed. (C) 2011 Elsevier B.V. All rights reserved.

Original languageEnglish
Pages (from-to)9673-9677
Number of pages5
JournalApplied Surface Science
Volume257
Issue number22
Early online date24 Jun 2011
DOIs
Publication statusPublished - 1 Sep 2011

Keywords

  • Block copolymers
  • Thin films
  • Stimuli-sensitive polymers
  • Surface structure
  • Wettability
  • RAY PHOTOELECTRON-SPECTROSCOPY
  • ATOMIC-FORCE MICROSCOPY
  • BLOCK-COPOLYMERS
  • POLY(VINYLIDENE FLUORIDE)
  • SURFACE CHARACTERIZATION
  • MICROPHASE SEPARATION
  • RESPONSIVE SURFACES
  • DIBLOCK COPOLYMERS
  • HYDROPHOBIC BLOCK
  • POLYMERS

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