聚对苯二甲酸丁二醇酯交联对红外光谱的影响

IF 0.7 4区化学 Q4 CHEMISTRY, PHYSICAL

Russian Journal of Physical Chemistry A Pub Date : 2025-02-11 DOI:10.1134/S0036024424702741

A. Abdullin, D. Faizullin, Y. Zuev, I. Sedov

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摘要

本文章由计算机程序翻译，如有差异，请以英文原文为准。

The Influence of Polybutylene Terephthalate Cross-Linking on Infrared Spectra

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The Influence of Polybutylene Terephthalate Cross-Linking on Infrared Spectra

The attenuated total reflection Fourier-transform infrared spectroscopy (ATR-FTIR) spectra of the samples of polybutylene terephthalate (PBT) with varying spatial densities of cross-links are obtained. The changes are primarily observed in the fingerprint region. The ratios of the area of the absorption bands 810/794 and 917/935 cm^–1 bands are shown to decrease with increasing degree of cross-linking and can be used to assess it. The changes in infrared absorption are linked to the difference in the bending frequency between the crystalline and amorphous phases of PBT. The latter is more prevalent in the densely cross-linked samples.

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来源期刊

Russian Journal of Physical Chemistry A 化学-物理化学

CiteScore

1.20

自引率

14.30%

发文量

376

审稿时长

5.1 months

期刊介绍： Russian Journal of Physical Chemistry A. Focus on Chemistry (Zhurnal Fizicheskoi Khimii), founded in 1930, offers a comprehensive review of theoretical and experimental research from the Russian Academy of Sciences, leading research and academic centers from Russia and from all over the world. Articles are devoted to chemical thermodynamics and thermochemistry, biophysical chemistry, photochemistry and magnetochemistry, materials structure, quantum chemistry, physical chemistry of nanomaterials and solutions, surface phenomena and adsorption, and methods and techniques of physicochemical studies.