NETWORK FORMATION AND PROPERTIES OF VINYL ESTER-STYRENE MATRIX RESINS FOR PULTRUDED COMPOSITES

"Vinyl ester" oligomers diluted with styrene comprise a class of resins for thermoset polymer matrix composites which are becoming increasingly important in infrastructure. The authors have investigated the cure chemistry of such resins along with methods for monitoring the progress and extent of cure. Infrared spectroscopy provides a convenient technique for directly measuring the amount of reactive double bonds remaining in the materials, and the amounts of residual styrene and vinyl ester groups can be assessed independently. Properties of networks where the vinyl ester oligomer has a molecular weight of 700 g/mol and the styrene level has been systematically increased are being investigated. These materials have been fully reacted so that the extent of cure is ~100% in order to make property comparisons as a function of styrene content. As the level of styrene is decreased, both the toughness and the glass transition temperatures of the networks increase.

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  • Corporate Authors:

    University of Arizona, Tucson

    Department of Civil Engineering and Engineering Mechanics
    1209 E 2nd Street
    Tucson, AZ  United States  85721-0072

    University of Arizona, Tucson

    Drachman Institute, 819 E First Street
    Tucson, AZ  United States  85721
  • Authors:
    • Li, Haiying
    • Burts, E
    • Sankarapandian, M
    • Robertson, MAF
    • Lesko, J J
    • Riffle, J S
  • Conference:
  • Publication Date: 1998-1

Language

  • English

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 35-45
  • Serial:
    • Volume: 1

Subject/Index Terms

Filing Info

  • Accession Number: 00762549
  • Record Type: Publication
  • ISBN: 1890743011
  • Files: TRIS
  • Created Date: Apr 27 1999 12:00AM