Synthesis and characterization of poly(acrylamide)-graft-poly(ethylene oxide-co-propylene oxide)

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Vos de, Sicco and Möller, Martin and Visscher, K. and Mijnlieff, P.F. (1994) Synthesis and characterization of poly(acrylamide)-graft-poly(ethylene oxide-co-propylene oxide). Polymer, 35 (12). pp. 2644-2650. ISSN 0032-3861

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Abstract:The synthesis and first experiments on the rheological behaviour of poly(acrylamide) (PAAm) grafted with poly(ethylene oxide-co-propylene oxide) are presented. Well-defined, water-soluble graft copolymers were prepared in high yields by grafting poly(oxyalkylene) monoamines onto partly hydrolysed PAAm. Reversible gelation of aqueous graft copolymer solutions (c > c* = 1/[n]) was observed in 0.5 M K2CO3 at elevated temperatures, accompanied by viscosity changes of almost three orders of magnitude between 80 and 85°C at low shear rates. The observed phenomena are explained in terms of the formation of secondary bonds or association between the grafts.
Item Type:Article
Copyright:© 1994 Elsevier Science
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Link to this item:http://purl.utwente.nl/publications/11442
Official URL:http://dx.doi.org/10.1016/0032-3861(94)90393-X
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Metis ID: 106165