Effects of confinement on the glass transition temperature of molecular liquids

Journal Article · Thu Apr 16 04:00:00 EDT 1992 · Journal of Physical Chemistry

DOI:https://doi.org/10.1021/j100187a056· OSTI ID:437102

Zhang, J; Liu, G; Jonas, J ^[1]

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1. Univ. of Illinois, Urbana, IL (United States)

Differential scanning calorimetry was used to analyze the effects of confinement on the glass transition of temperature, T{sub g}, of several molecular liquids in porous silica glasses. For all the liquids, confinement lowers the observed T{sub g}. A linear relationship between the inverse of the silica glass pore radius and T{sub g} was also observed. The relative temperature depression due to confinement was less than the freezing point depression. 40 refs., 1 fig., 1 tab.

• Sponsoring Organization: USDOE
• OSTI ID: 437102
• Journal Information: Journal of Physical Chemistry, Journal Name: Journal of Physical Chemistry Journal Issue: 8 Vol. 96; ISSN JPCHAX; ISSN 0022-3654
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
40 CHEMISTRY
ACETATES
BENZENE
CUMENE
GLASS
GLYCEROL
LIQUIDS
PHASE TRANSFORMATIONS
POROUS MATERIALS
SILICA
TEMPERATURE DEPENDENCE