Title

Characterization and polymerization of metal complexes of poly(ethylene glycol) diacrylates and the synthesis of polymeric pseudocrown ethers

Document Type

Article

Peer Reviewed

1

Publication Date

3-1-2000

Journal/Book/Conference Title

Chemistry of Materials

Abstract

Polymeric pseudocrown ether networks were formed in situ by the photopolymerization of poly(ethythene glycol) diacrylate (PEGDA)/transition metal complexes. The metal-monomer complex led to a near circular conformation of the monomer in which the two reactive end groups are brought into close proximity; thus, the probability of intramolecular cyclization (i.e., pseudocrown ether formation) is increased. Complexes of cobalt(II), nickel(II), zinc(II), cadmium(II), chromium(III), copper(II), neodymium(III), and lithium were characterized using FTIR and UV-vis spectroscopy, Metal-monomer interactions were characterized and the importance of coordinated water and anions was elucidated. A novel technique of replacing coordinated waters by monomeric ether oxygens was discovered. Pseudocrown ether network formation was confirmed via a study of the polymerization kinetics of cobalt(II): PEGDA systems in which a decrease in autoacceleration was observed with increasing pseudocrown ether formation.

Keywords

Sustainability

Published Article/Book Citation

Chemistry of Materials, 12:3 (2000) pp.633-642.

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URL

https://ir.uiowa.edu/cbe_pubs/13