Analysis of the complex-dissociation model for free-radical copolymerization

Hill D.J.T., O'Donnell J.H. and O'Sullivan P.W. (1983) Analysis of the complex-dissociation model for free-radical copolymerization. Macromolecules, 16 8: 1295-1300.

Author Hill D.J.T.
O'Donnell J.H.
O'Sullivan P.W.
Title Analysis of the complex-dissociation model for free-radical copolymerization
Journal name Macromolecules   Check publisher's open access policy
ISSN 0024-9297
Publication date 1983
Sub-type Article (original research)
Volume 16
Issue 8
Start page 1295
End page 1300
Total pages 6
Subject 2505 Materials Chemistry
Abstract Probability theory has been used to derive equations for the complex-dissociation model for free-radical copolymerization showing how the composition, the triad fractions, and the number fractions of sequences in the copolymer are related to the comonomer composition through the reactivity ratios and the equilibrium constant for complex formation. It is shown how these equations can be used to estimate "best" values of the reactivity ratios and the equilibrium constant using experimentally determined copolymer compositions. This model has been applied to the data of Dodgson and Ebdon for the styrene-maleic anhydride copolymerization in bulk at 60°C. The complex-dissociation model, the penultimate model, and the complex-participation model fit the copolymer/comonomer composition data equally well. However, the predicted styrene sequence distributions of the three models are quite different, and experimental determinations, for example, by 13C NMR, would enable discrimination between the models.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import
 
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