Titlebook: Crystallization of Polymers; Marcel Dosière Book 1993 Springer Science+Business Media Dordrecht 1993 chemistry.crystal.macromolecule.molec

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Raman Scattering from Longitudinal Acoustic Modes (LAM) of Crystalline OligomersLow-frequency Raman spectra were recorded for n-alcohols,α-methyl,ω-methoxy-oligo (oxyethylene)s and α-hydro, ω-hydroxy-oligo(oxyethylene)s. On the basis of linear crystal models, non-linear relationships between whole-chain LAM-1 frequency and reciprocal chain length, have been explained as effects of end- masses and end- forces.

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Growth, Nucleation and Thickening Rate Minima in Long Linear Alkanesples of unusual retardation effects observed both during primary crystallization in the temperature region where chains first begin to fold and also on isothermal thickening from once-folded to extended chain crystals. The associated crystal morphologies are discussed and the concept of “self-poisoning” is introduced to explain the results.

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https://doi.org/10.1057/978-1-349-94986-1zation, the latter as typified by the crystallization of polyethylene under pressure. This is achieved through a scheme based on some new experimental material comprising the recognition of thickening growth as a primary growth process of lamellae and of the prominence of metastable phases, specific

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https://doi.org/10.1057/978-1-349-94986-1 decreasing dG/d(ΔT) gradient with increasing supercooling, over most of the extended chain temperature range. The accompanying gradual change from faceted to round crystal habits with increasing retardation is consistent with growth surface roughening due to self-poisoning. This provides further su

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Two Legendary Iconoclasts Convergeon [.–.], morphology [.–.], crystallization kinetics [.–.], thickening [.–.] and melting processes [.–.] of these ideal model systems. These studies will serve as a bridge to the crystallization behavior of polymers by comparing the characteristics of these n-alkanes with those of low molecular weig