Amphiphilic polymer brushes are synthesized by the sequential graft copolymerization of crosslinked gelatin with methyl methacrylate and acrylic acid. Samples with varying lipophilic to hydrophilic ratio (L/I-I values) could be synthesized by adjusting the grafting conditions. Here we report the swelling behaviour of these systems in pure and mixed solvent systems. The swelling ratio is influenced by the L/H value of the material. The brush with L/H value close to 1 exhibits anomalous swelling. Mixed solvents appear to be better swelling media than pure solvents. We discuss these observations in the light of L/H values and the differential solvation of individual chains.
Посилання на статтю:
Swelling characteristics of amphiphilic polymer brushes in pure and mixed solvent systems* / D. Satyanarayana and P. R. Chatterji // Polymer. – 1993. – Vol 34. – P. 3682-3686.