Graft polymerization of vinyl monomers inside macroporous polyacrylamide gel, cryogel, in aqueous and aqueous-organic media initiated by diperiodatocuprate(III) complexes

Savina, I.N., Mattiasson, B. and Galaev, I.Y. (2006) Graft polymerization of vinyl monomers inside macroporous polyacrylamide gel, cryogel, in aqueous and aqueous-organic media initiated by diperiodatocuprate(III) complexes Journal of Polymer Science Part A Polymer Chemistry, 44 (6). pp. 1952-1963. ISSN 1099-0518

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Official URL: http://dx.doi.org/10.1002/pola.21305

Abstract

Graft polymerization initiated by diperiodatocuprate(III) complex (Cu(III)) initiator was found to be an effective and convenient method for graft polymerization of vinyl monomers onto macroporous polyacrylamide gels, the so-called cryogels (pAAm-cryogels). The effect of time, temperature, monomer and initiator concentration during the graft polymerization in aqueous and aqueous-organic media was studied. The graft polymerization of water-soluble monomers as [2-(methacryloyloxy)ethyl]-trimethylammonium chloride, 2-hydroxyethyl methacrylate, N-isopropylacrylamide, and N,N-dimethylacrylamide proceeds with higher grafting yield in aqueous medium, as compared with that in aqueous-organic media. Graft polymerization in aqueous-organic media such as water-DMSO solutions allows grafting of water-insoluble monomers such as glycidyl methacrylate and N-tert-butylacrylamide with high grafting degrees of 100 and 410%, respectively. It was found that the deposition of initiator on the pore surface of cryogels promoted graft polymerization by facilitating the formation of the redox couple Cu(III)-acrylamide group.

Item Type:Journal article
Subjects:C000 Biological and Biomedical Sciences
DOI (a stable link to the resource):10.1002/pola.21305
Faculties:Faculty of Science and Engineering > School of Pharmacy and Biomolecular Sciences
ID Code:2677
Deposited By:editor spbs
Deposited On:09 Oct 2007
Last Modified:16 May 2012 15:13

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