Abstract
Glass transition measured by DMTA from the change in slope in storage modulus was 55 °C, which was 10.5 °C lower than the value measured by tan δ peak. Initial glass transition measured by DSC, increased exponentially and reached a constant value of 55 °C at or higher heating rate of 30 °C/min. Transition temperature, measured by MDSC, remained constant up to heating rate 15 °C/min and then decreased. The glass transition values determined from reversible heat flow was 60 °C. The break in diffusivity and density (i.e. volume) was observed at 50 °C below the glass transition temperature measured by thermal and mechanical methods.
| Original language | English |
|---|---|
| Pages (from-to) | 372-377 |
| Number of pages | 6 |
| Journal | Chemical Physics Letters |
| Volume | 440 |
| Issue number | 4-6 |
| DOIs | |
| Publication status | Published - Jun 8 2007 |
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ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Spectroscopy
- Condensed Matter Physics
- Atomic and Molecular Physics, and Optics
- Surfaces and Interfaces
Cite this
Measurement of glass transition temperature by mechanical (DMTA), thermal (DSC and MDSC), water diffusion and density methods : A comparison study. / Rahman, Mohammad Shafiur; Al-Marhubi, Insaaf Mohd; Al-Mahrouqi, Abdullah.
In: Chemical Physics Letters, Vol. 440, No. 4-6, 08.06.2007, p. 372-377.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Measurement of glass transition temperature by mechanical (DMTA), thermal (DSC and MDSC), water diffusion and density methods
T2 - A comparison study
AU - Rahman, Mohammad Shafiur
AU - Al-Marhubi, Insaaf Mohd
AU - Al-Mahrouqi, Abdullah
PY - 2007/6/8
Y1 - 2007/6/8
N2 - Glass transition measured by DMTA from the change in slope in storage modulus was 55 °C, which was 10.5 °C lower than the value measured by tan δ peak. Initial glass transition measured by DSC, increased exponentially and reached a constant value of 55 °C at or higher heating rate of 30 °C/min. Transition temperature, measured by MDSC, remained constant up to heating rate 15 °C/min and then decreased. The glass transition values determined from reversible heat flow was 60 °C. The break in diffusivity and density (i.e. volume) was observed at 50 °C below the glass transition temperature measured by thermal and mechanical methods.
AB - Glass transition measured by DMTA from the change in slope in storage modulus was 55 °C, which was 10.5 °C lower than the value measured by tan δ peak. Initial glass transition measured by DSC, increased exponentially and reached a constant value of 55 °C at or higher heating rate of 30 °C/min. Transition temperature, measured by MDSC, remained constant up to heating rate 15 °C/min and then decreased. The glass transition values determined from reversible heat flow was 60 °C. The break in diffusivity and density (i.e. volume) was observed at 50 °C below the glass transition temperature measured by thermal and mechanical methods.
UR - http://www.scopus.com/inward/record.url?scp=34249089537&partnerID=8YFLogxK
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U2 - 10.1016/j.cplett.2007.04.067
DO - 10.1016/j.cplett.2007.04.067
M3 - Article
AN - SCOPUS:34249089537
VL - 440
SP - 372
EP - 377
JO - Chemical Physics Letters
JF - Chemical Physics Letters
SN - 0009-2614
IS - 4-6
ER -