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New approach for the measurement of glass transition temperature of polymer

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Title New approach for the measurement of glass transition temperature of polymer
 
Creator Gaur, M S
Shukla, Prashant
Tiwari, R K
Tanwar, Anju
Singh, S P
 
Subject TSDC
DSC
PTSDC
⍺-relaxation
β-relaxation
Poly (methyl methacrylate)
Glass transition temperature
 
Description 535-539
Global thermally stimulated discharge current (TSDC) and partial thermally stimulated discharge current (PTSDC) spectra were recorded to investigate the molecular motions at glass transition temperature (Tg) level in both sided vacuum aluminized 30 μm thick poly (methyl methacrylate) samples. The calculated values of charge released, relaxation time and activation energy correspond to ⍺ and β relaxation processes. The TSDC peak occurred at a temperature, which is close to Tg of the polymer. This temperature is in agreement with the Tg determined using DSC technique.
 
Date 2008-08-27T10:27:37Z
2008-08-27T10:27:37Z
2008-08
 
Type Article
 
Identifier 0019-5596
http://hdl.handle.net/123456789/1903
 
Language en_US
 
Publisher CSIR
 
Source IJPAP Vol.46(8) [August 2008]