Composites based on bimodal vinyl ester resins with low hazardous air pollutant contents

John J. La Scala, Matthew S. Logan, James M. Sands, Giuseppe R. Palmese

Research output: Contribution to journalArticlepeer-review

18 Scopus citations


Vinyl ester (VE) resins with a bimodal distribution of molecular weights were prepared via methacrylation of epoxy monomers. Bimodal VE resins and neat polymers had viscosities and mechanical properties similar to that of commercial resins. E-glass composites were prepared and also found to have similar mechanical and thermo-mechanical properties relative to composites fabricated using commercial resins. However, the fracture toughness of the bimodal resins was superior to that of the commercial resins partially as a result of increased molecular relaxations that were manifested in a broader glass transition. Overall, bimodal resins allow for the use of low styrene content (∼33 wt%), while maintaining excellent thermal, mechanical, and fracture properties for the neat resins and composites.

Original languageEnglish (US)
Pages (from-to)1869-1876
Number of pages8
JournalComposites Science and Technology
Issue number7-8
StatePublished - Jun 2008
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • General Engineering


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