Paper Title:
Zwitterionic and Charge-Balanced Polyampholyte Copolymer Hydrogels
  Abstract

Zwitterionic copolymers were synthesised from N,N-dimethyl-N-(2-acryloylethyl)-N-(3-sulfopropyl) ammonium betaine (SPDA) and 2-hydroxyethyl methacrylate (HEMA) produce a series of polyzwitterion hydrogels. For the synthesis of the charge-balanced copolymer hydrogels, two cationic monomers were selected: 2-(diethylamino) ethyl methacrylate (DMAEMA) and 3-(dimethylamino) propyl methacrylamide (DMAPMA), and an anionic monomer; 2-acrylamido-2-methylpropane sulphonic acid (AMPS). Two series of charge-balanced copolymers were synthesized from stoichiometrically equivalent ratios of DMAEMA or DMAPMA and AMPS with HEMA as a termonomer. All synthesized copolymers produced clear and cohesive hydrogels. The zwitterionic and charge-balanced copolymers displayed similar equilibrium water contents together with similar mechanical and surface energy properties. The swelling of the zwitterionic and the charge-balanced copolymers shows some features of antipolyelectrolyte behavior.

  Info
Periodical
Advanced Materials Research (Volumes 55-57)
Main Theme
Edited by
Tawee Tunkasiri
Pages
729-732
DOI
10.4028/www.scientific.net/AMR.55-57.729
Citation
D. Campbell, B.J. Tighe, "Zwitterionic and Charge-Balanced Polyampholyte Copolymer Hydrogels", Advanced Materials Research, Vols. 55-57, pp. 729-732, 2008
Online since
August 2008
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Price
$32.00
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