Chemical and Biomolecular Engineering Research and Publications

 

Title

Kinetic Analysis of Competing Intramolecular and Intermolecular Polymerization Reactions

Document Type

Article

Date of this Version

January 1992

Comments

This article was published in : Macromolecules; 1992; 25(6); 1725-1730. Copyright © 1992 American Chemical Society. The American Chemical Society allows the posting of only the title, abstract, tables, and figures from articles appearing in the Macromolecules. This article is available at publishthe publisher site at: http://pubs.acs.org/cgi-bin/archive.cgi/mamobx/1992/25/i06/pdf/ma00032a016.pdf

ABSTRACT: Kinetic reaction theory was used to model a step-growth, thermoset polymerization of a monomer of even functionality/. Intermolecular additions were represented by second-order and intramolecular reactions were expressed by first-order rate expressions. All functional groups were assumed to react with equal reactivity. Independent variables are degree of polymerization i, extent of cross-linking j, and conversion p. The normalized rate constant for intramolecular reactions is c. The solution for the normalized population density distribution............ subj Formulae for the number-, mass-, and cross-link-average molecular weights were derived.