Physical aging and light scattering of low-loss poly(methyl methacrylate) glass

Norihisa Tanio, Hisao Kato, Yasuhiro Koike, Harvey E. Bair, Shiro Matsuoka, Lee L. Blyler

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


Isothermal aging has been carried out on low-loss poly(methyl methacrylate) (PMMA) glass at 18°C below the glass transition temperature (Tg). The effect of enthalpy relaxation on light scattering loss of PMMA glass which had no excess scattering was investigated by the use of differential scanning calorimeter (DSC) and light scattering measurement. The light scattering intensity of PMMA glass did not increase with increasing aging time. It is seen that the light scattering loss of glassy PMMA is not affected inherently by physical aging as a result of its approach to thermodynamic equilibrium at a temperature 18°C below its Tg.

Original languageEnglish
Pages (from-to)56-59
Number of pages4
JournalPolymer Journal
Issue number1
Publication statusPublished - 1998


  • Amorphous Polymer
  • Enthalpy Relaxation
  • Glass Transition Temperature
  • Light Scattering Loss
  • Physical Aging
  • Poly(methyl methacrylate)
  • Polymer Glass

ASJC Scopus subject areas

  • Polymers and Plastics
  • Materials Chemistry


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