SPECTRAL CALORIMETRY STUDY OF RELAXATION BEHAVIOR OF PMMA

Authors
VASSILEV T AVRAMOV I VELINOV T SURNEV S
Citation
T. Vassilev et al., SPECTRAL CALORIMETRY STUDY OF RELAXATION BEHAVIOR OF PMMA, Solid state communications, 91(1), 1994, pp. 49-53
Citations number
22
Categorie Soggetti
Physics, Condensed Matter
Journal title
Solid state communications → ACNP
ISSN journal
00381098
Volume
91
Issue
1
Year of publication
1994
Pages
49 - 53
Database
ISI
SICI code
0038-1098(1994)91:1<49:SCSORB>2.0.ZU;2-5
Abstract
The frequency dependence of the photoacoustic (PA) signal is investiga ted upon heating of poly(methyl methacrylate) (PMMA) in the glass tran sition region. The frequency f vs reciprocal glass transition temperat ure T(g) data, obtained from the present PA measurements, are compared with those of the previous differential scanning calorimetry (DSC) in vestigation. The results are in good agreement with the theoretical mo dels of Avramov and Milchev and of Adam and Gibbs.