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Issue 14, 2015
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Thermophilic films and fibers from photo cross-linkable UCST-type polymers

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Abstract

Photo cross-linkable thermoresponsive polymers of UCST-type based on acrylamide (AAm) and acrylonitrile (AN) useful for preparing thermophilic hydrogel films and fibers are presented. The polymers prepared via free radical and reversible addition fragmentation chain-transfer (RAFT) polymerization methods using N-(4-benzoylphenyl)acrylamide (BPAm) as photo cross-linkable comonomers provided highly stable UCST-type phase transition in water reproducible without hysteresis for many cycles. The cloud point could be manipulated by varying the acrylonitrile amount in the feed. Chemically cross-linked hydrogel films and nanofibers (average diameter 500 nm) were successfully prepared from the ter-copolymers by solution casting and electrospinning followed by UV irradiation. These hydrogels showed a continuous positive volume transition behavior in water with increasing temperature that was utilized for the design of microactuators.

Graphical abstract: Thermophilic films and fibers from photo cross-linkable UCST-type polymers

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Publication details

The article was received on 26 Jan 2015, accepted on 13 Feb 2015 and first published on 13 Feb 2015


Article type: Paper
DOI: 10.1039/C5PY00109A
Citation: Polym. Chem., 2015,6, 2769-2776
  • Open access: Creative Commons BY license
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    Thermophilic films and fibers from photo cross-linkable UCST-type polymers

    F. Liu, S. Jiang, L. Ionov and S. Agarwal, Polym. Chem., 2015, 6, 2769
    DOI: 10.1039/C5PY00109A

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