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

Title data

Liu, Fangyao ; Jiang, Shaohua ; Ionov, Leonid ; Agarwal, Seema:
Thermophilic films and fibers from photo cross-linkable UCST-type polymers.
In: Polymer Chemistry. Vol. 6 (13 February 2015) Issue 14 . - pp. 2769-2776.
ISSN 1759-9954
DOI: https://doi.org/10.1039/c5py00109a

Project information

Project financing: Deutsche Forschungsgemeinschaft

Abstract in another language

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-co-polymers 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.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: ISI:000351720100019
Keywords: PHYSIOLOGICALLY RELEVANT CONDITIONS; CRITICAL SOLUTION TEMPERATURE; RADICAL POLYMERIZATION; PHASE-TRANSITION; AQUEOUS-SOLUTION; WATER; GELS
Institutions of the University: Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II > Chair Macromolecular Chemistry II - Univ.-Prof. Dr. Andreas Greiner
Faculties > Faculty of Engineering Science > Professur Biofabrikation > Professur Biofabrikation - Univ.-Prof. Dr. Leonid Ionov
Profile Fields
Profile Fields > Advanced Fields
Profile Fields > Advanced Fields > Polymer and Colloid Science
Research Institutions
Research Institutions > Research Centres
Research Institutions > Research Centres > Bayreuth Center for Colloids and Interfaces - BZKG
Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Professur Biofabrikation
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 29 May 2015 08:26
Last Modified: 27 Jun 2017 06:08
URI: https://eref.uni-bayreuth.de/id/eprint/14461