Network parameters for crosslinking of chains with length and site distribution

Douglas R. Miller, Chris Macosko

Research output: Contribution to journalArticlepeer-review

70 Scopus citations

Abstract

Polymer chains are crosslinked to form a network. The chains are polydispersed, with an arbitrary distribution of weight and functionality. Crosslinks may form in three different ways: direct coupling (homopolymerization), direct coupling with propagation, and coupling through copolymerization with small monomers. Various network parameters are calculated. We give computational formulae for gel point, weight fraction soluble, weight fraction pendant, weight fraction effective, concentration of effective junctions, concentration of effective network strands, and the entanglement trapping factor. These formulae give exact values for systems that previously have only been solved using simplifying approximations. Examples show that such simplification may lead to sizable errors in the computation of network parameters.

Original languageEnglish (US)
Pages (from-to)1-54
Number of pages54
JournalJournal of Polymer Science Part B: Polymer Physics
Volume26
Issue number1
DOIs
StatePublished - Jan 1988

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