Kinetics of enthalpy relaxation upon physical aging in glassy main-chain nematic polymers

1992 ◽  
Vol 25 (18) ◽  
pp. 4658-4664 ◽  
Author(s):  
C. B. McGowan ◽  
D. Y. Kim ◽  
R. B. Blumstein
Keyword(s):  
Physical Aging ◽  
Main Chain ◽  
Enthalpy Relaxation ◽  
Nematic Polymers ◽  
Kinetics Of

Relaxation Behaviors of Polystyrene during Physical Aging

2012 ◽  
Vol 557-559 ◽  
pp. 1479-1482
Author(s):  
Yao Liu ◽  
Cong De Qiao ◽  
Jin Shui Yao ◽  
Wen Ke Yang
Keyword(s):  
Relaxation Process ◽  
Aging Time ◽  
Fluorescence Spectrum ◽  
Physical Aging ◽  
Enthalpy Relaxation ◽  
Polymer Chains ◽  
Variation Trend ◽  
Kinetics Of

The relaxation behaviors of PS below Tg and its variation trend along with aging time were studied by DSC, fluorescence spectrum and XRD. On the basis of DSC results, the kinetics of the volume and enthalpy relaxation process were analyzed, and the influence of the aging time on the relaxation behaviors were discussed. The results of fluorescence spectrum and XRD indicated the presence of the rearrangement of polymer chains in the physical aging of polystyrene.

The thermodynamics and kinetics of the synthesis of poly(acid) amides with alicyclic structures in the main chain

1977 ◽  
Vol 19 (11) ◽  
pp. 2878-2884 ◽  
Author(s):  
B.A Zhubanov ◽  
V.A Solomin ◽  
P.Ye Messerle ◽  
N.G Avetisyan ◽  
V.D Moiseyev
Keyword(s):  
Main Chain ◽  
Thermodynamics And Kinetics ◽  
Kinetics Of

Physical Aging of Polycarbonate: Enthalpy Relaxation, Creep Response, and Yielding Behavior

1999 ◽  
Vol 32 (15) ◽  
pp. 5046-5061 ◽  
Author(s):  
J. M. Hutchinson ◽  
S. Smith ◽  
B. Horne ◽  
G. M. Gourlay
Keyword(s):  
Physical Aging ◽  
Enthalpy Relaxation ◽  
Creep Response ◽  
Yielding Behavior

Recent advances in the observation of disclinations of main-chain nematic polymers

1995 ◽  
Vol 96 (1) ◽  
pp. 27-49 ◽  
Author(s):  
Renyuan Qian ◽  
Shouxi Chen ◽  
Wenhui Song
Keyword(s):  
Main Chain ◽  
Recent Advances ◽  
Nematic Polymers
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