Application of ideal supermolecular paracrystal concept to the analysis of SAXS patterns from oriented semicrystalline polymers

Asherov, B.A.; Гинзбург, Б. М.

doi:10.1080/00222349708212396

Cited by 4 publications

(3 citation statements)

References 10 publications

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“…The group of Wilke proposes a paracrystalline macrolattice model and fits selected cuts of the pattern simultaneously to the model. [12][13][14] Asherov et al 15 model the scattering pattern based on an ideal paracrystalline model. Murthy et al 16,17 propose the choice of model functions in elliptical cylindrical coordinates to extract features from the pattern.…”

Section: Introductionmentioning

confidence: 99%

The equatorial small-angle scattering during the straining of poly(ether ester) and its analysis

Stribeck

1999

J. Polym. Sci. B Polym. Phys.

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A method for the quantitative analysis of two‐dimensional (2D) small‐angle X‐ray scattering (SAXS) patterns with fiber symmetry by successive information filtering is proposed and applied to a series of images recorded during a straining experiment of a two‐phase polymer sample at a synchrotron beamline. The studied equatorial scattering is similar to the frequently discussed void scattering, but originates from an ensemble of rodlike soft domains (needles) in the sample, orientated in the direction of strain. The intensity is extracted and projected onto the equatorial plane, the ideal two‐phase structure is extracted, and the 2D chord distribution is computed. This curve describes a 2D two‐phase morphology made from needle cross‐sections embedded in matrix material. Because interparticular correlation is found to be weak in the chord distribution, pure particle scattering is assumed. Modeling the needle cross‐sections by circular disks leads to a simple theory, which allows the deconvolution of a disk diameter distribution from the chord distribution. It is shown how parameters of the disk diameter distribution can be computed without deconvolution. For the selected poly(ether ester) thermoplastic elastomer the study of the soft domain needles indicates strain‐induced hardening. While for low elongation ϵ the soft needles are more compressible than the microfibrillar matrix, saturation is observed for ϵ > 2.5. © 1999 John Wiley & Sons, Inc. J Polym Sci B: Polym Phys 37: 975–981, 1999

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Section: Introductionmentioning

confidence: 99%

The equatorial small-angle scattering during the straining of poly(ether ester) and its analysis

Stribeck

1999

J. Polym. Sci. B Polym. Phys.

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“…A. Asherov introduced the concept of "ideal supramolecular paracrystal" (ISP). [22] The widely used models of the supramolecular structure of oriented semicrystalline polymers [23] are special cases of ISP. The methods of calculation and analysis of SAXS patterns of polymers were simplified.…”

mentioning

confidence: 99%

“…The methods of calculation and analysis of SAXS patterns of polymers were simplified. [23][24][25] B. M. Ginzburg and Dr. E .T. Magdalev introduced a significant contribution to the study of the elasticity of the crystalline lattices of polymers, especially polyimides.…”

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confidence: 99%