Jump to main content
Jump to site search

Issue 18, 2011
Previous Article Next Article

Fast-reversible light-driven hydrogels consisting of spirobenzopyran-functionalized poly(N-isopropylacrylamide)

Author affiliations

Abstract

We introduced different spirobenzopyran derivatives into poly(N-isopropylacrylamide) gels and evaluated the effects of spontaneous ring-opening rates of the spirobenzopyrans on light-responsive volume change behaviors of the gels. Rates of reswelling from the light-induced shrunken state of the spirobenzopyran-functionalized poly(N-isopropylacrylamide) (p(Sp-NIPAAm)) gels increased with increasing ring-opening rates of spirobenzopyrans in the gels. Bending motion of a rod-like p(Sp-NIPAAm) gel was invoked by local light-irradiation because of asymmetric shrinkage of the gel. Two types of bending motions were observed depending on the reswelling rates of the gels; a gel with a fast reswelling rate was steadily bent only during light-irradiation, whereas another gel with a slow reswelling rate showed a continuous bending motion even after the irradiation. In addition, a sheet-like gel with a fast reswelling rate was operated as a micro-conveyor whose conveying direction was arbitrarily controlled with a light-irradiation.

Graphical abstract: Fast-reversible light-driven hydrogels consisting of spirobenzopyran-functionalized poly(N-isopropylacrylamide)

Back to tab navigation

Supplementary files

Article information


Submitted
02 May 2011
Accepted
06 Jun 2011
First published
15 Jul 2011

Soft Matter, 2011,7, 8030-8034
Article type
Paper

Fast-reversible light-driven hydrogels consisting of spirobenzopyran-functionalized poly(N-isopropylacrylamide)

T. Satoh, K. Sumaru, T. Takagi and T. Kanamori, Soft Matter, 2011, 7, 8030
DOI: 10.1039/C1SM05797A

Social activity

Search articles by author

Spotlight

Advertisements