Volume no :3, Issue no: 1, January (2011)

Journal of Materials Science and Engineering with Advanced Technology

SYNTHESIS AND SWELLING BEHAVIOR OF COLLAGEN-g-POLY(MAA)/ KAOLIN SUPERABSORBENT HYDROGEL COMPOSITES

Author's: Mohammad Sadeghi
Pages: [41] - [52]
Received Date: November 25, 2010
Submitted by:

Abstract

In this work, a novel superabsorbent hydrogel composite based on collagen have been prepared via graft copolymerization of methacrylic acid (MAA) in the presence of kaolin powder by using methylenebisacrylamide (MBA) as a crosslinking agent and ammonium persulphate (APS) as an initiator. A proposed mechanism for hydrogel formation was suggested and the structure of the composite was established by using FTIR spectroscopy and gravimetric analysis of the products. A new absorption band at in the composite spectrum confirmed kaolin-organic polymer linkage. The effect of kaolin amount and MBA concentration showed that with increasing of these parameters, the water absorbency of the superabsorbent composite was decreased.

Keywords

collagen, poly(methacrylic acid), superabsorbent, composite.