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Polymer Bulletin

, Volume 31, Issue 2, pp 229–233 | Cite as

Dynamic mechanical studies of the glass transition temperature of photopolymerized multifunctional acrylates

  • Kristi S. Anseth
  • Christopher N. Bowman
  • Nikolaos A. Peppas
Article

Summary

The glass transition temperatures of the highly crosslinked networks formed from photopolymerizing-the multifunctional monomers trimethylol propane triacrylate (TrMP TrA), pentaerythritol tetraacrylate (PETeA), and dipentaerythritol monohydroxy pentaacrylate (DPEMHP eA) were determined using a dynamic viscoelastometer. All glass transition temperatures, Tg, were in excess of 150°C indicating the highly crosslinked structure of the resulting networks. The curves of the damping factor as a function of temperature were broadened peaks spanning up to 100°C due to the extreme heterogeneity of these structures. Evidence of trapped radicals was also observed as cured samples subjected to a thermal pretreatment had higher Tg than those without the thermal pretreatment.

Keywords

Polymer Propane Glass Transition Temperature Acrylate Material Processing 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 1993

Authors and Affiliations

  • Kristi S. Anseth
    • 1
  • Christopher N. Bowman
    • 1
  • Nikolaos A. Peppas
    • 2
  1. 1.Department of Chemical EngineeringUniversity of ColoradoBoulderUSA
  2. 2.School of Chemical EngineeringPurdue UniversityWest LafayetteUSA

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