Theoretical evaluation and the effect of thermal degradation on the Time-Temperature-Transformation (TTT) diagram of bisphenol A epoxies

2003 ◽  
Vol 89 (14) ◽  
pp. 3894-3896 ◽  
Author(s):  
Herbert Stutz
Keyword(s):  
Thermal Degradation ◽  
Bisphenol A ◽  
Theoretical Evaluation ◽  
Ttt Diagram ◽  
Temperature Transformation

Time-temperature-transformation (TTT) diagram of caustic calcined magnesia

CIM Journal ◽  
2015 ◽  
Vol 6 (1) ◽  
pp. 42-50 ◽  
Author(s):  
K. Ebrahimi-Nasrabadi ◽  
M. Barati ◽  
P. W. Scott
Keyword(s):  
Ttt Diagram ◽  
Temperature Transformation

Formation of bisphenol A by thermal degradation of poly(bisphenol A carbonate)

Chemosphere ◽  
2010 ◽  
Vol 80 (11) ◽  
pp. 1281-1284 ◽  
Author(s):  
Yuki Kitahara ◽  
Seiji Takahashi ◽  
Masamichi Tsukagoshi ◽  
Toshihiro Fujii
Keyword(s):  
Thermal Degradation ◽  
Bisphenol A

Thermal degradation of aromatic polyformals derived from bisphenol A and bisphenol AF

1995 ◽  
Vol 267 ◽  
pp. 231-237 ◽  
Author(s):  
Shigeo Nakamura ◽  
Yuta Suzuki ◽  
Takakazu Kojima ◽  
Kazuaki Tago
Keyword(s):  
Thermal Degradation ◽  
Bisphenol A ◽  
Bisphenol Af

scholarly journals Ambient-temperature Conditioning as a Probe of Double-C Transformation Mechanisms in Pu-2.0 at. % Ga

2008 ◽  
Vol 1104 ◽  
Author(s):  
Jason R Jeffries ◽  
Kerri J. M. Blobaum ◽  
Mark A. Wall ◽  
Adam J. Schwartz
Keyword(s):  
Ttt Diagram ◽  
Optimal Conditioning ◽  
High Temperature Anneal ◽  
Conditioning Treatment ◽  
Conditioning Temperature ◽  
Δ Phase ◽  
Transformation Mechanisms ◽  
Temperature Transformation ◽  
Underlying Mechanisms ◽  
Kinetics Of

AbstractThe gallium-stabilized Pu-2.0 at. % Ga alloy undergoes a partial or incomplete low-temperature martensitic transformation from the metastable δ phase to the gallium-containing, monoclinic α′ phase near -100 °C. This transformation has been shown to occur isothermally and it displays anomalous double-C kinetics in a time-temperature-transformation (TTT) diagram, where two nose temperatures anchoring an upper- and lower-C describe minima in the time for the initiation of transformation. The underlying mechanisms responsible for the double-C behavior are currently unresolved, although recent experiments suggest that a conditioning treatment—wherein, following an anneal at 375 °C, the sample is held at a sub-anneal temperature for a period of time—significantly influences the upper-C of the TTT diagram. As such, elucidating the effects of the conditioning treatment upon the δ⟶α′ transformation can provide valuable insights into the fundamental mechanisms governing the double-C kinetics of the transition. Following a high-temperature anneal, a differential scanning calorimeter (DSC) was used to establish an optimal conditioning curve that depicts the amount of α′ formed during the transformation as a function of conditioning temperature for a specified time. With the optimal conditioning curve as a baseline, the DSC was used to explore the circumstances under which the effects of the conditioning treatment were destroyed, resulting in little or no transformation.

Influence of Chain Structure on Phase Behavior and Thermal Degradation of Poly(trimethylene terephthalate)/Poly(hydroxy ether) of Bisphenol-A Blends

2007 ◽  
Vol 292 (10–11) ◽  
pp. 1103-1110 ◽  
Author(s):  
Madjid Farmahini-Farahani ◽  
Seyed Hassan Jafari ◽  
Hossein Ali Khonakdar ◽  
Ahmad Yavari ◽  
Raheleh Bakhshi ◽  
...  
Keyword(s):  
Thermal Degradation ◽  
Bisphenol A ◽  
Phase Behavior ◽  
Chain Structure ◽  
Trimethylene Terephthalate ◽  
Hydroxy Ether
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