Authors
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Rueda, J.C. ; Komber, H. ; Cedrón, J.C. ; Voit, B. ; Shevtsova, G.
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Title
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Synthesis of New Hydrogels by Copolymerization of Poly(2-methyl-2-oxazoline) Bis(macromonomers) and N-Vinylpyrrolidone
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Date
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03.06.2003
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Number
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10853
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Abstract
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New non-ionic hydrogels were synthesized by radical homopolymerization of vinyl end-functionalized poly(2-methyl-2-oxazoline) bis(macromonomers), or by radical copolymerization of these bis(macromonomers) with <I>N</I>-vinyl-2-pyrrolidone (NVP). The poly(2-methyl-2-oxazoline) bis(macromonomers) were synthesized through <IMGSRC="/giflibrary/12/ldquo.gif"BORDER="0">living<IMGSRC="/giflibrary/12/rdquo.gif"BORDER="0"> cationic ring-opening polymerization of 2-methyl-2-oxazoline (MeOXA), using, simultaneously, the known <IMGSRC="/giflibrary/12/ldquo.gif"BORDER="0">initiating<IMGSRC="/giflibrary/12/rdquo.gif"BORDER="0"> and <IMGSRC="/giflibrary/12/ldquo.gif"BORDER="0">end-capping<IMGSRC="/giflibrary/12/rdquo.gif"BORDER="0"> method for synthesis of macromonomers. Chloromethyl styrene was used as initiator and <I>N</I>-(4-vinylbenzyl)-piperazine was used as the terminating agent. Well defined poly(2-methyl-2-oxazoline) bis(macromonomers) were obtained with <I>P</I><SUB>n</SUB> = 4, 11, and 17. The hydrogel structures were characterized by high-resolution magic angle spinning NMR technique and their solvent absorption capacity was tested by swelling experiments in different solvents. The bis(macromonomers) were characterized by NMR spectroscopy and gel permeation chromatography.
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Publisher
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Macromolecular Chemistry and Physics
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Wikidata
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Citation
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Macromolecular Chemistry and Physics 204 (2003) 947-953
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DOI
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https://doi.org/10.1002/macp.200390062
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Tags
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high-resolution magic angle spinning nmr hydrogels polyoxazoline polypyrrolidone swelling nonionic hydrogel polymerization 2-methyl-2-oxazoline macromonomers networks
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