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A series of poly(methy1 methacrylate)-g-poly(dimethylsiloxane) and poly(methy1 methacrylate)-g-poly(trifluoropropylmethylsiloxane) copolymers have been synthesized via the 'macromonomer’ method by which monofunctional polysiloxane macromonomers are copolymerized with methyl methacrylate. The graft copolymers have been characterized by gel permeation chromatography, 'H n.m.r. spectroscopy and differential scanning calorimetry. Dynamic contact angle (DCA) analysis afforded advancing and receding water contact angles over 15 days immersion in water. The initially hydrophobic polymer surfaces rapidly rearrange in the presence of water to more hydrophilic surfaces. The effects of varying the amount and type of siloxane in the copolymer on DCA results are discussed. The fouling and fouling release behaviour of coatings formulated from the graft copolymers have been evaluated in Chesapeake Bay. Fouling and fouling release behaviour are discussed in the light of DCA results.

Посилання на статтю:

Synthesis, characterization and surface analysis using dynamic contact angle measurements of graft copolymers: poly(methy1 methacrylate)-g-poly(dimethylsiloxane) and poly(methy1 methacrylate)-g-poly(trifluoropropylmethylsiloxane) / Ann E. Meraa, Michael Goodwinb, John K. Pike, Kenneth J. Wynned // Polymer. – 1999. – N 40. – P. 419–427.

Synthesis, characterization and surface analysis using dynamic contact angle measurements of graft copolymers: poly(methy1 methacrylate)-g-poly(dimethylsiloxane) and poly(methy1 methacrylate)-g-poly(trifluoropropylmethylsiloxane) - Завантажити.