A new strategy to characterize the extent of reaction of thermoset elastomers

Antonio R. Webb, Jian Yang, Guillermo A. Ameer

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

A new method for determining the extent of reaction of thermoset elastomers was developed based on equilibrium swelling and dynamic mechanical analysis (DMA). The extent of reaction was defined based on the molecular weight between crosslinks (Mc) of a polymer sample in relation to Mc at the onset of gelation and at complete reaction. The molecular weight between crosslinks was measured using equilibrium swelling, whereas rheology and DMA were used to determine the exact point of gelation and reaction completion, respectively. The extent of reaction of poly(1,8-octanediol-co-citrate) at various polymerization conditions was investigated and this method was used to study the relationship between mechanical properties, molecular weight between crosslinks, and extent of reaction.

Original languageEnglish (US)
Pages (from-to)1318-1328
Number of pages11
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Volume46
Issue number4
DOIs
StatePublished - Feb 15 2008

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Elastomers
Thermosets
Molecular weight
Dynamic mechanical analysis
Gelation
Swelling
Rheology
Polymers
Polymerization
Mechanical properties

All Science Journal Classification (ASJC) codes

  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

Cite this

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abstract = "A new method for determining the extent of reaction of thermoset elastomers was developed based on equilibrium swelling and dynamic mechanical analysis (DMA). The extent of reaction was defined based on the molecular weight between crosslinks (Mc) of a polymer sample in relation to Mc at the onset of gelation and at complete reaction. The molecular weight between crosslinks was measured using equilibrium swelling, whereas rheology and DMA were used to determine the exact point of gelation and reaction completion, respectively. The extent of reaction of poly(1,8-octanediol-co-citrate) at various polymerization conditions was investigated and this method was used to study the relationship between mechanical properties, molecular weight between crosslinks, and extent of reaction.",
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A new strategy to characterize the extent of reaction of thermoset elastomers. / Webb, Antonio R.; Yang, Jian; Ameer, Guillermo A.

In: Journal of Polymer Science, Part A: Polymer Chemistry, Vol. 46, No. 4, 15.02.2008, p. 1318-1328.

Research output: Contribution to journalArticle

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AB - A new method for determining the extent of reaction of thermoset elastomers was developed based on equilibrium swelling and dynamic mechanical analysis (DMA). The extent of reaction was defined based on the molecular weight between crosslinks (Mc) of a polymer sample in relation to Mc at the onset of gelation and at complete reaction. The molecular weight between crosslinks was measured using equilibrium swelling, whereas rheology and DMA were used to determine the exact point of gelation and reaction completion, respectively. The extent of reaction of poly(1,8-octanediol-co-citrate) at various polymerization conditions was investigated and this method was used to study the relationship between mechanical properties, molecular weight between crosslinks, and extent of reaction.

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