Abstract
The poly(sodium acrylate) gel physically cross-linked by aluminum ions were prepared at different temperatures. The gelation processes of the gels were examined using a dynamic viscoelastic measurement. The adhesion of the gels were also measured with the use of a simple tack-evaluation technique using a point contact. As a result, adhesion, stiffness, and time for the completion of the gelation strongly depended on the gelation temperature. The results were discussed in terms of the physical and chemical properties of gel surface formed at gelation.
