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Solutions of polyacrylic acid form strong gels upon the addition of bases. Two different gels have been studied by differential scanning calorimetry (DSC) and rheometry in order to examine both their viscoelastic behaviour and the fraction of the free solvent in the system. These properties are important from a technological point of view, because of their application in cultural heritage conservation...
Solutions of polyacrylic acid form strong gels upon the addition of bases. Two different gels have been studied by differential scanning calorimetry (DSC) and rheometry in order to examine both their viscoelastic behaviour and the fraction of the free solvent in the system. These properties are important from a technological point of view, because of their application in cultural heritage conservation...
We have prepared supramolecular polymer gels by mixing solutions of a polystyrene bearing cyclic amidine pendant groups (Poly‐A) and copolymers of acrylic acid and n‐butyl acrylate (Poly‐C), followed by evaporation. FT‐IR analysis indicated that the gels were formed through three‐dimensional network of the amidinium‐carboxylate salt bridge. DSC study showed that the Poly‐A and the Poly‐C were miscible...
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