The Temperature-Sensitive Behaviors of SMPU/PNIPAM Semi-IPN Films

Zheng Xia Xu; Zheng Wei Dai; Yuan Xue

doi:10.4028/www.scientific.net/AMR.712-715.373

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 712-715The Temperature-Sensitive Behaviors of SMPU/PNIPAM...

The Temperature-Sensitive Behaviors of SMPU/PNIPAM Semi-IPN Films

Abstract:

A semi-interpenetrating polymer network was fabricated from SMPU (Shape-Memory Polyureathan and PNIPAM (poly (N-isopropylacrylamide)) with the method of in-situ crosslinking polymerization. The temperature-sensitivity of the semi-IPN films was investigated and discussed. The morphology was achieved by extracting the SMPU phase. The influence of PNIPAM phase to the phase transition behavior of SMPU was studied with DSC, the results of which showing that the phase transition temperature is increased by PNIPAM. The introduction of PNIPAM also endows the semi-IPN films with a temperature-sensitive surface hydrophilicity, which was proved by water contact angle measurement at different temperatures. Finally, the water vapor permeability evaluation reveals the temperature-sensitive transportation property of the semi-IPN films, which is formed by the swelling and shrinking of PNIPAM phase according to the environmental temperature. These results shows that the semi-IPN material is a good candidate for the fabrication of intelligent breathable garments.

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Periodical:

Advanced Materials Research (Volumes 712-715)

Pages:

373-377

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.712-715.373

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Online since:

June 2013

Authors:

Zheng Xia Xu, Zheng Wei Dai, Yuan Xue

Keywords:

Breathability, Semi-IPN, SMPU, Temperature-Sensitivity

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