Microstructural analysis of p-acryloyloxy-acetanilide and N, N-dimethylacrylamide copolymers of biomedical interest by NMR

Copolymers with anti-thrombogenic properties based on N,N-dimethylacrylamide (A) and para-acryloyloxyacetanilide (B) were prepared by radical polymerization in DMF solutions at 50 degree C using 2,2'-azobisisobutyronitrile (AIBN) as initiator. The reactivity ratios of both monomers were determi...

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Bibliographic Details
Published in:Polymer (Guilford) 1999-08, Vol.40 (17), p.4953-4960
Main Authors: BULAI, A, DE QUEIROZ, A.-A. A, GALLARDO, A, ROMAN, J. S
Format: Article
Language:English
Subjects:
Acrylics
Applied sciences
Biomedical engineering
Biopolymers
Chemical bonds
Exact sciences and technology
Free radical polymerization
Microstructure
Nuclear magnetic resonance spectroscopy
Organic polymers
Physicochemistry of polymers
Polyamides
Polymers with particular properties
Preparation, kinetics, thermodynamics, mechanism and catalysts
Structure (composition)
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Summary:Copolymers with anti-thrombogenic properties based on N,N-dimethylacrylamide (A) and para-acryloyloxyacetanilide (B) were prepared by radical polymerization in DMF solutions at 50 degree C using 2,2'-azobisisobutyronitrile (AIBN) as initiator. The reactivity ratios of both monomers were determined by the application of the non-linear least-squares method suggested by Tidwell and Mortimer. The obtained results (r sub(A) identical with 0.47 and r sub(B) identical with 0.63) confirm that this comonomer pair polymerizes statistically but with a moderate tendency to form alternate sequences, depending on the composition of the monomer feed.
ISSN:0032-3861
1873-2291
DOI:10.1016/S0032-3861(98)00710-1