Modulus of three and four functional poly(dimethylsiloxane) networks

Christopher W. Macosko, Grant S. Benjamin

Research output: Contribution to journalArticlepeer-review

48 Scopus citations


Networks formed from α, ω divinyl poly(dimethylsiloxane) end-linked with tri- and tetrafunctional hydrosilanes are used to test several theoretical relations for the small strain modulus. The results indicate that topological interactions between chains have a large influence on the modulus, however, the suppression of junction fluctuation by topological interactions seems to be small for PDMS networks. Independent measurement of the topological interactions between chains, the plateau modulus GNO on linear PDMS, agrees well with that determined from the networks. The influence of hydrosilane side reactions on determination of network structure parameters was accounted for.

Original languageEnglish (US)
Pages (from-to)1505-1518
Number of pages14
JournalPure and Applied Chemistry
Issue number8
StatePublished - Jan 1 1981

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