Bulletin of the American Physical Society
APS March Meeting 2011
Volume 56, Number 1
Monday–Friday, March 21–25, 2011; Dallas, Texas
Abstract: S1.00051 : Characterization of hybrid hydrogel with different shape of particles after gamma-ray radiation
Author:
Due to high specific surface area and the ability to absorb organic
molecules, inorganic particles such as silica particle (spherical),
imogolite (rodlike), and clay (fan shape) could be used as
precursors for
hydrogels. The hydrogel which had 3-D network structure was directly
prepared by polymerization with acrylic acid (AA) on hydroxide
surface of
inorganic particles that was irradiated by gamma-ray at ambient
condition.
Surface of inorganic particles was used as sites of initiator and
cross-linker to make hydrogel, so we don't need any additional
additives to
make hydrogel. The properties of hydrogel were characterized by
small angle
x-ray scattering (SAXS), universal testing machine (UTM), and Raman
spectroscopy. By changing the inorganic particles/monomer ratio, the
mechanical strength was significantly changed. The synthesized
hydrogel can
be elongated maximum 1800{\%}. 2D SAXS pattern was different
depending on
the shape of inorganic particles. And the hydrogel swelled only
in basic
solutions at pH $>$ 7.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2011.MAR.S1.51
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