A New Look at Kinetic Modeling of Nonlinear Free Radical Polymerizations with Terminal Branching and Chain Transfer to Polymer | Zendy

Rolando Dias | Zendy; Mário Rui P. F. N. Costa | Zendy

Open Access

A New Look at Kinetic Modeling of Nonlinear Free Radical Polymerizations with Terminal Branching and Chain Transfer to Polymer

Author(s) -

Rolando Dias,

Mário Rui P. F. N. Costa

Publication year - 2003

Publication title -

macromolecules

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.994

H-Index - 313

eISSN - 1520-5835

pISSN - 0024-9297

DOI - 10.1021/ma035030b

Subject(s) - branching (polymer chemistry) , polymer , chain transfer , radical polymerization , kinetic chain length , kinetic energy , chemistry , polymer chemistry , terminal (telecommunication) , polymerization , nonlinear system , chain (unit) , molar mass distribution , kinetics , thermodynamics , organic chemistry , computer science , physics , telecommunications , quantum mechanics , astronomy

The authors' previously developed method for the general kinetic analysis of nonlinear irreversible polymerizations based on moment generating functions is used for simulating free radical polymerization systems in which terminal branching and chain transfer to polymer are present, leading possibly to gel formation. The numerical solution of the equations needed for postgel predictions of sol fraction and average molecular weights (a major difficulty) is discussed with some detail. Finally, some different combinations of kinetic parameters were tested in order to assess their influence on the molecular weight development in a batch reactor.

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