Modeling of the isobaric and isothermal glass transitions of polystyrene

2011 ◽  
Vol 122 (6) ◽  
pp. 3751-3756 ◽  
Author(s):  
Luigi Grassia ◽  
Maria Giovanna Pastore Carbone ◽  
Alberto D'Amore
Keyword(s):  
Glass Transitions

Enthalpy relaxation and glass transitions in Point of Ayr coal

Fuel ◽  
1995 ◽  
Vol 74 (1) ◽  
pp. 136 ◽  
Author(s):  
Alexander J. Mackinnon ◽  
Peter J. Hall ◽  
Colin E. Snape ◽  
Paul Burchill
Keyword(s):  
Enthalpy Relaxation ◽  
Glass Transitions

A Positron Annihilation Lifetime Study of Poly(Bisphenol-a Carbonate)

1986 ◽  
Vol 82 ◽  
Author(s):  
P. L. Jones ◽  
A. J. Hill ◽  
G. W. Pearsall ◽  
J. H. Lind
Keyword(s):  
Bisphenol A ◽  
Positron Annihilation ◽  
Thermal History ◽  
Thermal Response ◽  
Semicrystalline Polymers ◽  
Glass Transitions ◽  
Thermal Dependence ◽  
Positron Annihilation Lifetime ◽  
Ductile To Brittle Transition ◽  
Increasing Temperature

ABSTRACTPositron annihilation lifetime spectroscopy has proven to be sensitive to glass transitions and other free volume dependent phase transitions in amorphous and semicrystalline polymers. The thermal dependence of the lifetime spectra of positrons in compression-molded poly(bisphenol-A carbonate) has been measured from 253K to 323K, then modelled using a three component fit. The longest-lived component lifetime τ3 was found to vary linearly with increasing temperature independent of thermal history. The corresponding component intensity I3 was found to vary in a non-linear fashion with increasing temperature, exhibiting a significant dependence on thermal history. The observed thermal response of τ3 and I3 is discussed in terms of both molecular relaxation and the ductile-to-brittle transition behavior of poly(bisphenol-A carbonate).

Interionic vibrations and glass transitions in ionic oxide metaphosphate glasses

1974 ◽  
Vol 60 (11) ◽  
pp. 4145-4155 ◽  
Author(s):  
Gregory J. Exarhos ◽  
Philip J. Miller ◽  
William M. Risen
Keyword(s):  
Glass Transitions ◽  
Ionic Oxide

scholarly journals Effects of temperature and pressure on the glass transitions of plastic bonded explosives

2000 ◽  
Vol 357-358 ◽  
pp. 89-95 ◽  
Author(s):  
Mary Stinecipher Campbell ◽  
Danielle Garcia ◽  
Deanne Idar
Keyword(s):  
Glass Transitions ◽  
Effects Of Temperature ◽  
Temperature And Pressure

Observation of Liquid-to-Glass and Glass-to-Glass Transitions in L64/D2O Triblock Copolymer Micellar System

2003 ◽  
Vol 29 (10-11) ◽  
pp. 611-618
Author(s):  
Sow-Hsin Chen ◽  
Wei-Ren Chen ◽  
Francesco Mallamace
Keyword(s):  
Triblock Copolymer ◽  
Micellar System ◽  
Glass Transitions

Unconventional orientational glass transitions in symmetrical difluorotetrachloroethane

1994 ◽  
Vol 6 (35) ◽  
pp. 6947-6964 ◽  
Author(s):  
J K Kruger ◽  
J Schreiber ◽  
R Jimenez ◽  
K -P Bohn ◽  
F Smutny ◽  
...  
Keyword(s):  
Glass Transitions ◽  
Orientational Glass
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