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The swelling behaviour of thermoresponsive hydrogel/silica nanoparticle composites


Reference:

van den Brom, C. R., Anac, I., Roskamp, R. F., Retsch, M., Jonas, U., Menges, B. and Preece, J. A., 2010. The swelling behaviour of thermoresponsive hydrogel/silica nanoparticle composites. Journal of Materials Chemistry, 20 (23), pp. 4827-4839.

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Official URL:

http://dx.doi.org/10.1039/b927314j

Abstract

A new responsive nanocomposite material consisting of a poly-(N-isopropylacrylamide) hydrogel and "super-crosslinking'' silica nanoparticles was prepared by mixing both components in solution, spincoating a thin film, and photocrosslinking by UV irradiation. Detailed analysis of the thermal response of these water-swollen films by means of surface plasmon resonance and optical waveguide spectroscopy revealed that the composite is very stable and has excellent responsive properties; it is of high optical homogeneity; admixture of the nanoparticles (up to 50%-wt) does not affect the critical volume collapse temperature; and swell-collapse cycles are highly reproducible and display only limited hysteresis. Thus, the composite is promising as a scaffold for further functionalisation and incorporation in sensors or actuators.

Details

Item Type Articles
Creatorsvan den Brom, C. R., Anac, I., Roskamp, R. F., Retsch, M., Jonas, U., Menges, B. and Preece, J. A.
DOI10.1039/b927314j
DepartmentsFaculty of Science > Chemistry
RefereedYes
StatusPublished
ID Code19367

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