Article ID Journal Published Year Pages File Type
596903 Colloids and Surfaces A: Physicochemical and Engineering Aspects 2008 5 Pages PDF
Abstract

Chemically crosslinked poly(aspartic acid) (PASP) gels were prepared by the hydrolysis of polysuccinimide (PSI). This latter was prepared by thermal polycondensation of aspartic acid. The PSI chains were crosslinked by 1,4-diaminobutane. The consecutive reactions of hydrolysis and swelling kinetics of PSI- and PASP-based gels were studied at different pH values. Two distinct swelling mechanisms were proposed. The cooperative diffusion coefficient has been found to be three orders of magnitude higher in pH 14 solution than at pH 8.

Related Topics
Physical Sciences and Engineering Chemical Engineering Colloid and Surface Chemistry
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