Crystalline transition of polyamide-10,20 investigated by in situ Fourier transform infrared spectroscopy

Real‐time Fourier transform infrared spectroscopy was used to investigate the crystalline transition of even–even polyamide‐10,20. During the crystalline transition, the intensity of the hydrogen bonds became weak, the twisting of the CCO and CN bonds improved, and the gauche conformation of the C...

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Veröffentlicht in:Journal of polymer science. Part B, Polymer physics Polymer physics, 2004-11, Vol.42 (21), p.4017-4022
Hauptverfasser: Cui, Xiaowen, Yan, Deyue
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Yan, Deyue
description Real‐time Fourier transform infrared spectroscopy was used to investigate the crystalline transition of even–even polyamide‐10,20. During the crystalline transition, the intensity of the hydrogen bonds became weak, the twisting of the CCO and CN bonds improved, and the gauche conformation of the CH2 sequences increased, along with the strengthening of the vibration of the methylene units. The ordered stacking of methylene segments with the trans‐zigzag conformation gradually became disordered by the insertion of the gauche conformation upon heating. © 2004 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 42: 4017–4022, 2004
doi_str_mv 10.1002/polb.20266
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subjects Applied sciences
conformation
crystal structures
crystalline transition
Exact sciences and technology
FT-IR
Organic polymers
Physicochemistry of polymers
polyamides
Properties and characterization
Structure, morphology and analysis
title Crystalline transition of polyamide-10,20 investigated by in situ Fourier transform infrared spectroscopy
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