What is it about?
Inconsistent swelling and mechanical properties of chemically crosslinked hydrogel have been a trouble for a long time. In this paper, those properties were measured geometrically, middle and edge parts of a round shape hydrogel. Position- dependent properties was examined physically and chemically.
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Why is it important?
Our results suggest a ground for the inhomogeneity of hydrogel, mainly arised from the reaction condition and first part in a reactor where the infinite molecule is formed. To enhance the mechanical property of hydrogel, polystyrene seed microemulsion, which included polystyrene and styrene in a particle, was incorporated. Inhomogeneity was increased as the mechanical property was enhanced.
Perspectives
It may be required to study the mechanism of crosslinking polymerization which depends on the reaction conditions and type of monomer or crosslinking agent, to suggest more confident conclusion about the inhomogeneity in the future.
Dr Byungsoo Kim
University of Southern California
Read the Original
This page is a summary of: Inhomogeneous swelling and mechanical properties of polystyrene bead-filled poly(acrylic acid) hydrogels, RSC Advances, January 2014, Royal Society of Chemistry,
DOI: 10.1039/c4ra14035d.
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