Temperature-responsive water-soluble copolymers based on 2-hydroxyethyl acrylate and butyl acrylate
Mun, G.A., Nurkeeva, Z.S., Beissegul, A.B., Dubolazov, A.V., Urkimbaeva, P.I., Park, K. and Khutoryanskiy, V.V. (2007) Temperature-responsive water-soluble copolymers based on 2-hydroxyethyl acrylate and butyl acrylate. Macromolecular Chemistry and Physics, 208 (9). pp. 979-987. ISSN 1022-1352
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To link to this article DOI: 10.1002/macp.200600555
Amphiphilic copolymers have been synthesised by free radical copolymerisation of 2-hydroxyethyl acrylate with butyl acrylate, the reactivity ratios of which indicate practically equal reactivity. The copolymers containing less than 30 mol-% of BA were soluble in water and exhibited a LCST in aqueous solutions. It was found that the interaction between these copolymers and poly(acrylic acid) in aqueous solutions resulted in the formation of interpolymer complexes stabilised by hydrogen bonds and hydrophobic interactions. This interaction was significantly affected by solution I pH and led to modification of the temperature-responsive behaviour of the copolymers.