Three methods are proposed for calculating melting temperature characteristics. These methods are based on: (i) average crystal size, (ii) the crystal stem number distribution function, and (iii) the monomer structural unit distribution function. They were employed to analyze the isothermal and non-...
Polyethylene FractionMelting TemperatureHigh PressureDifferential Thermal AnalysisPressure AnnealingSlope of Melting CurvePolymer Journal, official journal of the Society of Polymer Science, Japan publishes high quality papers in all areas of polymer and macromolecular research....
The melting temperature range of polymersThe free energy of melting of polymer crystals has been examined and the effect of the conformational entropy of non-crystalline chain segments taken into consideration; this gave the correlations allowing determination of the melting range of the polymers. ...
Significant increase in the melting temperature of poly(|[epsiv]|-caprolactone) blocks confined in the crystallized lamellar morphology of poly(|[epsiv]|-caprolactone)-block-polyethylene copolymerscrystalline-crystalline diblock copolymerlamellar morphology...
The method includes the step of feeding the plastic, selected from the group of polyethylene, polypropylene, polystyrene, and combinations thereof, into a heated vessel for melting. The method also includes the step of decomposing the plastic at a temperature of from 400掳 C. to 500掳 C. in...
An experimental study of crystallization and melting of polyethylene and its octene copolymers under quiescent conditions and their melt-spun fibers is presented. This includes copolymers produced by both Dow's Insite Technology homogeneous catalyst and by a Ziegler heterogeneous catalyst. It is found ...
Crystallizations were also carried out via two other pathways: (1) cooling without pressure adjustment and (2) first crossing the L–L phase boundary via pressure reduction at constant temperature followed by cooling. Crystallization and melting transitions were assessed from the variations of the ...
If the molecular weight dependence of the melting temperature for PBSu is similar to that for polyethylene, the results for the molecular weight dependence of PBSu can be explained. © 2002 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 40: 2411–2420, 2002 View Full Article (...
1.Non-Isothermal Crystallization and Melting Behavior of β-Nucleated PP/PA6 Alloysβ-成核聚丙烯/尼龙6合金的非等温结晶与熔融行为 2.Confined Isothermal Crystallizing Kinetics and Melting Behavior of Polyethylene Glycol(PEG) / Poly (vinyl alcohol) (PVA) Solid-Solid Phase Change Materials聚乙二醇/聚乙烯...
Hence, if interface melting occurs, defocus electron micrographs should show an increase in the thickness of the amorphous regions as the temperature is increaseddoi:10.1002/pol.1976.180140315J. PetermannH. GleiterJournal of Polymer Science: Polymer Physics Edition...