Abstract
A series of comb-like copolymer with variation in poly(ethylene oxide) side chain length and anionic group content was synthesized successfully for detailed interfacial studies by free radical copolymerization of sodium acrylate with methoxy poly (ethylene oxide)-acrylate (MPEGAA) without any crosslinking reaction. MPEGAA were synthesized first by catalytic esterification of acrylic acid with methoxy poly (ethylene oxide) (MPEG) using dicyclohexyldimethylcarbodiimide and 4-dimethylaminopyridine as a catalyst. The degree of conversion in relation to MPEG was found to be close to 100%. The FT-IR, 1H-NMR and GPC show that the structure and molecular weights of target copolymers are consistent with the designed structure.
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