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In-situ SAXS/WAXS investigations of the mechanically-induced phase transitions in semi-crystalline polyamides

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TLDR
In this article, the structural evolution of polyamide-11 (PA11) and Polyamide-6 (PA6) crystallized under various crystal forms was investigated as a function of draw temperature with respect to the Brill transition.
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This article is published in Polymer.The article was published on 2019-06-26 and is currently open access. It has received 28 citations till now. The article focuses on the topics: Transition temperature & Phase transition.

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Small strain behavior of polyethylene: In situ SAXS measurements

TL;DR: In this paper, the authors investigated the influence of the stress transmitter (ST) density and the crystallinity Xc on the local deformation of stack lamella deformation and found that the ratio elocal/emacro was a constant close to 0.5.
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Small-angle X-ray and neutron scattering

TL;DR: Small-angle scattering (SAS) as discussed by the authors is a technique that is able to probe the structural organization of matter and quantify its response to changes in external conditions, such as temperature, pressures, flows, shears or stresses.
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Relationship between crystalline structure of polyamide 6 within carbon fibers and their mechanical properties studied using Micro-Raman spectroscopy

TL;DR: In this paper, the relationship between the local crystalline structure of polyamide 6 (PA6) within carbon fibers (CFs) and the mechanical properties of unidirectional CF-reinforced PA6 composites was determined.
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Stretch-Induced Reverse Brill Transition in Polyamide 46

TL;DR: In this paper, the structural transition of polyamide 46 (PA46) films during tensile stretch at temperatures from 37 to 249 °C were studied using in situ synchrotron radiation wide-angle X-ray diffraction (SRWAXD) and Fourier transform infrared (FTIR) techniques.
References
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Book

Nylon plastics handbook

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The crystal structure of polycaproamide: Nylon 6

TL;DR: The crystal structure of nylon 6 (NH (CH2)5CO)p has been determined by interpretation of the x-ray diffraction patterns given by drawn, rolled fibers.
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Premelting crystalline relaxations and phase transitions in nylon 6 and 6,6

TL;DR: In this paper, the presence of a Brill transition in nylon 6,6 (N6,6) is demonstrated for the first time, and the Brill transition has been extensively studied.
Book

n-Nylons: Their Synthesis, Structure, and Properties

TL;DR: In this article, the backbones of the n--nylon family were identified and a Spectroscopic Identification of n--Nylons was carried out to identify the structure of n-nylons.
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