glass transition temperature


Also found in: Acronyms, Wikipedia.

glass transition temperature

[¦glas ‚tran′zish·ən ‚tem·prə·chər]
(physical chemistry)
The temperature at which a liquid changes to an amorphous or glassy solid.
References in periodicals archive ?
Therefore, the aging rate will start to decrease at temperatures near and above the glass transition temperature [1, 2].
PDMDPS possessed the lowest glass transition temperature and the highest diffusivity for phenol.
The composition of the polymers was chosen so that the latex glass transition temperature was in the range of 40-60[degrees]C.
When examining the thermal expansion of three 175[degrees]C glass transition laminates, he found that Product A exhibited more total Z-axis expansion than Product B because of a lower glass transition temperature.
Symons says the industry can look forward to reformulation of products to give a warmer glass transition temperature, the breeding of cultivars of fruits and vegetables with warmer glass transition temperatures, the rotation of inventory during storage with regard to these temperatures, and the re-evaluation of optimal storage temperatures to take acount of glass-transition temperatures of stored products.
This was studied because blowing agent concentration is believed to have the most pronounced effect due to its lowering of the glass transition temperature of the polymer.
Amorphous, High Glass Transition Temperature Copolyester Compositions, Methods of Manufacture, and Articles thereof," Navinchandra S.
This epoxy has a glass transition temperature exceeding 175[degrees]C.
Before being blended with the rubber, the poly(phenylene ether) composition exhibits a glass transition temperature of about 40 to about 140[degrees]C, and during blending with the rubber, the oil component of poly(phenylene ether) composition migrates from the poly(phenylene ether) composition to the rubber, leaving a poly(phenylene ether)-containing disperse phase that gives rise to a second hysteresis peak temperature of about 160 to about 220[degrees]C as measured by dynamic mechanical analysis of the cured rubber composition.
Previous research showed that the powders were stable below the glass transition temperature, the temperature at which an amorphous solid changes from a rigid, glassy state to a rubbery, viscous state.