Journal ArticleDOI
Wide angle X-ray diffraction study of the microstructure of chain-folded polyethylene crystals
TLDR
In this article, the profile of the 002 diffraction peak of polyethylene is related to microstructural parameters for the [001] direction, including mean crystal thickness, distribution of thicknesses, shape function and the degree of paracrystalline disorder in the lattice.Abstract:
The profile of the 002 diffraction peak of polyethylene is related to microstructural parameters for the [001] direction. The parameters considered are the mean crystal thickness, distribution of thicknesses, shape function and the degree of paracrystalline disorder in the lattice.read more
Citations
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Journal ArticleDOI
Evidence for a partially ordered component in polyethylene from wide-angle X-ray diffraction
A.M.E. Baker,A. H. Windle +1 more
TL;DR: In this paper, the authors reported a discrepancy found during the analysis of wide-angle X-ray diffraction patterns from a broad range of branched polyethylenes and described its interpretation.
Journal ArticleDOI
An improved single-line method for the wide-angle X-ray scattering profile analysis of polymers
D. Hofmann,E. Walenta +1 more
TL;DR: In this article, a modified single-line technique for determining separately the size and lattice distortion parameters of the crystalline regions by wide-angle X-ray scattering (WAXS) of typical polymer materials is proposed.
Journal ArticleDOI
Distribution of straight-chain lengths in unannealed and annealed solution-crystallized polyethylene by Raman spectroscopy
TL;DR: The effect of annealing on the morphology of solution-crystallized polyethylene has been studied by analyzing the shape of the low-frequency Raman LAM-1 band as discussed by the authors.
Book ChapterDOI
6.2 Crystallite Size and Lamellar Thickness by X-Ray Methods
Jing-I Wang,Ian R. Harrison +1 more
TL;DR: In this paper, the authors discuss the ways in which lamellar thickness (fold period or long period) and crystallite size can be measured using x-ray techniques, and different corrections used in X-ray studies are considered.
Journal ArticleDOI
The annealing of solution-crystallized polyethylene mats: an X-ray diffraction study
TL;DR: In this article, both low and wide-angle X-ray diffraction measurements have been made on solution-crystallized mat of high density polyethylene which have been annealed for different periods at 125° C.
References
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Journal ArticleDOI
The Effect of Cold‐Work Distortion on X‐Ray Patterns
B. E. Warren,B. L. Averbach +1 more
TL;DR: In this article, a cosine Fourier series and a set of An coefficients determined by measuring several orders of a given plane is used to obtain a distribution function of the strains directly from a Fourier transform of the An coefficients.
Journal ArticleDOI
Molecular model of drawing polyethylene and polypropylene.
TL;DR: In this paper, it was shown that high molecular weight samples with many interlamella links exhibit a smaller draw ratio than lower molecular weight material, and that the three stages are intermixed in the neck.
Journal ArticleDOI
A note on single crystals in polymers: Evidence for a folded chain configuration
TL;DR: In this paper, the morphology and orientation of polyethylene polymers were studied with the electron microscope combined with selected area electron diffraction and it was concluded that the molecules must bend sharply back on themselves forming a regular folded configuration.
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Degree of crystallinity of linear polyethylene from wide‐angle x‐ray diffraction
M. R. Gopalan,L. Mandelkern +1 more