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RISNew experimental evidence about secondary processes in phenylphthalein-dimethylether and 1,1′-bis(p-methoxyphenyl)cyclohexane
The slow secondary (β) process of 1,1′-bis (4-methoxyphenyl) cyclohexane and phenolphthalein dimethylether has been investigated by dielectric spectroscopy. New experimental results about the pressure dependence of the two ...
Interdependence of Primary and Johari-Goldstein Secondary Relaxations in Glass-Forming Systems
-relaxation time; (b) the contemporary scaling of the isothermal-pressure and isobaric-temperature dependences of the α-and β-relaxation times as plotted versus the reduced variable Tg(P)/T where Tg is the glass transition temperature. These novel and model...
Relationship between structural and secondary relaxation in glass formers: Ratio between glass transition temperature and activation energy
relaxation and RT g, where T g is the glass transition temperature, and R is the gas constant. This relationship has been recently rationalized by the Coupling Model in terms of many-body dynamics and was applied to the intermolecular Johari...
Temperature and pressure dependence of secondary process in an epoxy system
. From the analysis of the isothermal measurements, we observe that the activation volume of the secondary relaxation has nonmonotonic temperature dependence with a maximum at the temperature of the glass transition at ambient pressure. An interpretation...
Effect of drying methods of microencapsulated Lactobacillus acidophilus and Lactococcus lactis ssp. cremoris on secondary protein structure and glass transition temperature as studied by Fourier transform infrared and differential scanning calorimetry
Effect of temperature and pressure on the stractural (a-) and the true Johari-Goldstein (b-) relaxation in binary mixtures
relaxation and therefore of the glass transition phenomenon....
Secondary dynamics in glass formers: relation with the structural process and the glass transition
In this paper, we study secondary relaxations in a neat glass former close and below the glass transition. The pressure and temperature dependences of the characteristic relaxation frequencies were investigated to find a connection between...
Survival of Microencapsulated Potential Probiotic Bacteria in Simulated Gastric Juice
and porosity of the beads was studied by scanning electron microscopy (SEM) and the surface area was calculated using gas surface analyzer and BET equation. Glass transition temperature (Tg) of the protective substances (glucose, fructose, galactose, saccharose...