Study of the temperature dependence of isothermal spherulitic growth rate data for poly(pivalolactone) in blends with poly(vinylidene fluoride): a link between coherent secondary nucleation theory and mixing thermodynamics

Polymer ◽  
1994 ◽  
Vol 35 (9) ◽  
pp. 1896-1908 ◽  
Author(s):  
Jiang Huang ◽  
Abaneshwar Prasad ◽  
Hervé Marand
Keyword(s):  
Growth Rate ◽  
Temperature Dependence ◽  
Vinylidene Fluoride ◽  
Nucleation Theory ◽  
Rate Data ◽  
Secondary Nucleation ◽  
Spherulitic Growth ◽  
Spherulitic Growth Rate ◽  
Poly Vinylidene Fluoride

Crystallization Regimes and Spherulitic Morphology of Poly(trimethylene terephthalate/isophthalate) Random Copolyesters

2013 ◽  
Vol 834-836 ◽  
pp. 129-132
Author(s):  
Chia Hsin Tung ◽  
Tien Wei Shyr
Keyword(s):  
Growth Rate ◽  
Crystallization Kinetics ◽  
Acid Content ◽  
Isophthalic Acid ◽  
Nucleation Theory ◽  
Secondary Nucleation ◽  
Spherulitic Growth ◽  
Spherulitic Morphology ◽  
Trimethylene Terephthalate ◽  
Regime Transitions

The crystallization regimes and spherulitic morphology of poly (trimethylene terephthalate/isophthalate) (TI) random copolyesters were studied in this work. A hot stage polarizing microscope was used to observe morphology and measure growth rate of the spherulite of TI copolyesters. Lauritzen-Hoffman secondary nucleation theory was applied to investigate crystallization kinetics and regimes of TI copolyesters. Results show that the spherulitic growth rate decreased with an increase in isophthalic acid content of the copolyesters. The analysis of Lauritzen-Hoffman secondary nucleation theory shows that regime I, II, and III were observed in TI11 and TI21. Regime III was observed in TI29. The spherulitic morphology of TI11, TI21, and TI29 changed from elliptical-shaped spherulite to irregular spherulite and then to normal spherulite at the regime transitions.

Temperature dependence of imprint mechanism in poly(vinylidene fluoride-trifluoroethylene) copolymer ultrathin films

2014 ◽  
Vol 104 (10) ◽  
pp. 103505 ◽  
Author(s):  
Xiuli Zhang ◽  
Xiaoli Du ◽  
Ying Hou ◽  
Zhaoyue Lü ◽  
Haisheng Xu
Keyword(s):  
Temperature Dependence ◽  
Ultrathin Films ◽  
Vinylidene Fluoride ◽  
Poly Vinylidene Fluoride
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