Abstract
AbstractThe kinetics of the development of the rigidity of gelatin gels, at con tant temperature, indicatcs second-order concentration dependence of the rate of increase of rigidity in the early stages of gel formation. At the gelation point, the value of (dGdt)t→0 has a higher order concentration dependence, approaching third-order. During later stages of the gel maturation period the kinetics reduce to tho e satisfying the equation for a first-order reaction. The mechanisms involved are discussed in terms of nucleation, inter-chain linkages and continued chain folding in cross-linked segments.
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