Title
Synthesis of new hydrogels by copolymerization of poly(2-methyl-2-oxazoline) bis(macromonomers) and N-vinylpyrrolidone
Date Issued
07 May 2003
Access level
metadata only access
Resource Type
journal article
Author(s)
Abstract
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 N-vinyl-2-pyrrolidone (NVP). The poly(2-methyl-2-oxazoline) bis(macromonomers) were synthesized through "living" cationic ring-opening polymerization of 2-methyl-2-oxazoline (MeOXA), using, simultaneously, the known "initiating" and "end-capping" method for synthesis of macromonomers. Chloromethyl styrene was used as initiator and N-(4-vinylbenzyl)-piperazine was used as the terminating agent. Well defined poly(2-methyl-2-oxazoline) bis(macromonomers) were obtained with Pn = 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.
Start page
947
End page
953
Volume
204
Issue
7
Language
English
OCDE Knowledge area
Química física
Química analítica
Subjects
Scopus EID
2-s2.0-0038662753
Source
Macromolecular Chemistry and Physics
ISSN of the container
10221352
Sources of information:
Directorio de Producción Científica
Scopus