The swelling behaviour of thermoresponsive hydrogel/silica nanoparticle composites

C R van den Brom, I Anac, R F Roskamp, M Retsch, U Jonas, Bernhard Menges, J A Preece

Research output: Contribution to journalArticle

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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.
LanguageEnglish
Pages4827-4839
Number of pages13
JournalJournal of Materials Chemistry
Volume20
Issue number23
DOIs
StatusPublished - 21 May 2010

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Hydrogel
Hydrogels
Silicon Dioxide
Swelling
Silica
Nanoparticles
Composite materials
Surface plasmon resonance
Optical waveguides
Scaffolds
Crosslinking
Hysteresis
Nanocomposites
Actuators
Irradiation
Spectroscopy
Thin films
Water
Sensors
Temperature

Cite this

van den Brom, C. R., Anac, I., Roskamp, R. F., Retsch, M., Jonas, U., Menges, B., & Preece, J. A. (2010). The swelling behaviour of thermoresponsive hydrogel/silica nanoparticle composites. DOI: 10.1039/b927314j

The swelling behaviour of thermoresponsive hydrogel/silica nanoparticle composites. / van den Brom, C R; Anac, I; Roskamp, R F; Retsch, M; Jonas, U; Menges, Bernhard; Preece, J A.

In: Journal of Materials Chemistry, Vol. 20, No. 23, 21.05.2010, p. 4827-4839.

Research output: Contribution to journalArticle

van den Brom, CR, Anac, I, Roskamp, RF, Retsch, M, Jonas, U, Menges, B & Preece, JA 2010, 'The swelling behaviour of thermoresponsive hydrogel/silica nanoparticle composites' Journal of Materials Chemistry, vol. 20, no. 23, pp. 4827-4839. DOI: 10.1039/b927314j
van den Brom CR, Anac I, Roskamp RF, Retsch M, Jonas U, Menges B et al. The swelling behaviour of thermoresponsive hydrogel/silica nanoparticle composites. Journal of Materials Chemistry. 2010 May 21;20(23):4827-4839. Available from, DOI: 10.1039/b927314j
van den Brom, C R ; Anac, I ; Roskamp, R F ; Retsch, M ; Jonas, U ; Menges, Bernhard ; Preece, J A. / The swelling behaviour of thermoresponsive hydrogel/silica nanoparticle composites. In: Journal of Materials Chemistry. 2010 ; Vol. 20, No. 23. pp. 4827-4839
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