Paper Title:
Solvents Effect on the Structure and Properties of Thermosensitive Polyurethane/Poly(N-Isopropylacrylamide) Semi-Interpenetrating Polymer Networks
  Abstract

poly(N-isopropylacrylamide) (PNIPPAm) is a thermally sensitive polymeric material which exhibits large volume transition at temperatures around its lower critical solution temperature (LCST). To get a thermosensitive semi-Interpenetrating Polymer Networks(semi-IPNs), N- isopropylacrylamide (NIPPAm) was dispersed and synthesized with different crosslinking agent amount in thermoplastic polyurethane(TPU) solution. The resulting films were characterized in terms of swelling ration, surface contact angle, and scanning electron micrograph (SEM). The results showed that filming medium has great affect on the structure and swelling of PU/PNIPPAm composite film and the amount of crosslinking agent influents the miscibility of PU and PNIPPAm. Ethanol as filming medium makes the phase separation behavior of PNIPPAm insignificant in the films.

  Info
Periodical
Advanced Materials Research (Volumes 129-131)
Edited by
Xie Yi and Li Mi
Pages
1166-1170
DOI
10.4028/www.scientific.net/AMR.129-131.1166
Citation
H. N. Lv, C. Qian, Y. Xue, Z. S. Cai, "Solvents Effect on the Structure and Properties of Thermosensitive Polyurethane/Poly(N-Isopropylacrylamide) Semi-Interpenetrating Polymer Networks", Advanced Materials Research, Vols. 129-131, pp. 1166-1170, 2010
Online since
August 2010
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$32.00
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