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Polymer film conformation transition temperature detection method and system

A technology for polymer film and conformation transition, which is applied in the field of the detection method and system for the conformation transition temperature of the polymer film, and can solve the problems of detecting the conformation transition temperature of the polymer film and the like.

Pending Publication Date: 2021-02-05
DONGGUAN UNIV OF TECH
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  • Abstract
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Problems solved by technology

So far, there is no patent report on the use of terahertz time-domain spectroscopy to detect the conformational transition temperature of polymer films

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  • Polymer film conformation transition temperature detection method and system
  • Polymer film conformation transition temperature detection method and system
  • Polymer film conformation transition temperature detection method and system

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Embodiment Construction

[0047] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0048] The purpose of the present invention is to provide a method and system for detecting the conformational transition temperature of a polymer film, which is used to accurately detect the conformational transition temperature of a polymer film. The advantages of high accuracy of the results.

[0049] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in d...

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Abstract

The invention discloses a polymer film conformation transition temperature detection method and system. The method comprises the following steps: measuring a terahertz time-domain spectral signal of atemperature control sample pool; selecting a temperature point according to a first preset interval in the temperature rise range of the temperature control sample pool to measure a first terahertz time-domain spectral signal of the thin film sample; determining the turning temperature of the film sample according to the terahertz time-domain spectral signal of the temperature control sample pooland the first terahertz time-domain spectral signal; selecting a temperature point according to a second preset interval within a preset temperature range of the transition temperature to measure a second terahertz time-domain spectral signal of the thin film sample; and determining the conformational transformation temperature of the film sample according to the terahertz time-domain spectral signal of the temperature control sample cell and the second terahertz time-domain spectral signal. The terahertz time-domain spectroscopy technology is used for detecting the conformational transformation temperature of the polymer film, so that the method has the advantages of being rapid, free of marks, easy to operate, wide in application range, good in repeatability, high in result accuracy andthe like.

Description

technical field [0001] The invention relates to the field of polymer material conformation analysis, in particular to a method and system for detecting conformation transition temperature of a polymer film. Background technique [0002] Polymer materials have various properties, such as oil resistance, corrosion resistance, and gas barrier properties, and are widely used in various fields, such as medicinal chemistry, synthetic chemistry, material science, biology, etc. At a certain temperature, the main chain of polymer materials (such as polyvinyl alcohol PVA) undergoes a conformational change, and the conformational change will affect its physical and chemical properties, such as water solubility. Therefore, the determination of the conformational transition temperature of polymer materials is of great significance in practical applications, and it is a hot spot in the research of physical chemistry and analytical chemistry. The currently developed method for measuring t...

Claims

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Application Information

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IPC IPC(8): G01N21/3586G01N25/00G01K11/00
CPCG01K11/00G01N21/3586G01N25/00
Inventor 魏东山高建魁凌东雄刘竞博
Owner DONGGUAN UNIV OF TECH
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