In this study we have investigated the features of the glass transition relaxation of indomethacin using Differential Scanning Calorimetry (DSC). The purpose of this work is to provide an estimation of the activation energy at the glass transition temperature, as well as of the fragility index, of a
The effects of heating and cooling rate on the characteristics of the calorimetric glass transition for glassy polymers
β Scribed by John R. Saffell
- Publisher
- Elsevier Science
- Year
- 1980
- Tongue
- English
- Weight
- 922 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0040-6031
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π SIMILAR VOLUMES
The glass transition temperature !I', of glassy systems (Pd,\_,M,),,sssSi,.,,, for M = Cu, Ag, Au, Rh, Ni, Co and Fe and (Pd,\_flN,),.,,PO.,O for N = Ni, Co and Fe has been investigated. The composition dependence of T, of' glassy alloys exhibits a striking similarity to that of the heat of mixing,
The effect of rate on the brittle-ductile transition of polymers can be given by an Arrheniustype equation with activation energy between those of 01 and p transitions and given by where Eb is the activation energy for brittle-ductile transition, E , is that for a transition, Ep is that for / 3 tran