Titlebook: Solidification Processes in Polymers; J. -F. Janssson,U. W. Gedde Conference proceedings 1992 Springer-Verlag Berlin Heidelberg 1992 Copol

刀锋

J. A. Koenen,H.-G. Kiliann conditions, the formability can be influenced by the metallurgical structures of the sheet, Metal sheets produced by a combination of rolling and annealing bring about dramatic changes in the mechanical properties and are characterized by the crystallographic textures (or preferred orientations of

长处

因无茶而冷淡

泰然自若

Crystallization and morphology of binary blends of linear and branched polyethylene, mass polymer is the dominant feature in the blends with polymers having a lower degree of chain branching (≤0.5 mol%). The applicability of differential scanning calorimetry, polarized light microscopy, and transmission electron microscopy to reveal cocrystallization and segregation phenomena in polyethylene is discussed.

hermitage

花束

Structural relaxation process on a thermosetting resin,e aged at . . somewhat lower than . . (. .=80 and 90°C). In this case, the position of the peak is less dependent of . .. The behavior of these endothermic peaks must be attributed to the kinetics of the structural relaxation process, and not to some change of the morphology of the crosslinking of polymer network.

污点

Electron microscopic investigation of the crystallization behavior of polymer blends,aining only one type of macromolecule, as well as lamellae containing macromolecules of different PE components (cocrystallization). Detailed information has been obtained by quantitative measuring of thickness distributions of lamellae and by determination of lamellae in the melting range after fixation of lamellae using .-irradiation.

繁忙

Thermodynamic anomalies in the pressure-temperature phase diagram of poly-4-methyl pentene-1: Disorperature. Other unexpected findings include a new pressure-induced modification of poly-4-methyl pentene-1, with a one-way entry only. A few aspects of similar features found in other materials are also stated.

OCTO

The role of transient hexagonal phase in crystallization of polymers,inversion from h to o phase. Thickness dependence on phase inversion is explicitly shown in the polymer trans 1,4-polybutadience, where the mobile h phase, similar to PE, can exist, even at atmospheric pressure.

Incompetent

Overall mobility of polymethylene chains in the solid state: A spectroscopic study,nsequence of their different coupling with the torsional modes which, in turn are activated by the conformational soliton-like distortion of the chain. Vibrational spectra agree with what is predicted. — A test case (n-alkanes included in urea clathrate) is provided to support the predictions.