Change in Physico-chemical Properties of PMMA and PS by Copolymerization with an Anionic Amphiphilic Comonomer: Sodium 11-(methacryloyloxy) undecanylsulfate (MET) |
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| Authors: | P C Hartmann M Lupo W Weber R D Sanderson |
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| Institution: | 1. UNESCO Associated Centre for Macromolecules, Department of Chemistry and Polymer Science, University of Stellenbosch, Private Bag X1, Matieland, 7602, South Africa Tel: +27 21 808 3176;2. Fax: +27-21 808 4967. |
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| Abstract: | Sodium 11-(methacryloyloxy) undecanylsulfate (MET) monomer units were incorporated in polystyrene (PS) and poly(methyl methacrylate) (PMMA) by free radical copolymerization in solution with styrene and methyl methacrylate, respectively. Experimental compositions, thermal degradations, average molecular weights, glass transitions and affinities for moisture were experimentally determined for copolymers of various compositions. Both styrene and methyl methacrylate copolymerized well with MET. An increase in the moisture affinity and a change in the glass transition were observed with increasing MET content in the respective copolymers. |
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| Keywords: | amphiphilic copolymers DMA moisture affinity polymerizable surfactant TGA |
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