Sorption–Desorption of Water Vapor by Linear Amorphous Polymers

The laws governing sorption–desorption of water vapor by microporous sorbents based on linear amorphous polymers (polystyrene, polyvinyl chloride, and polymethyl methacrylate) have been studied. A mathematical model of sorption–desorption hysteresis is presented. Based on the proposed model, it is s...

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Bibliographic Details
Published in:Journal of engineering physics and thermophysics 2022-09, Vol.95 (5), p.1180-1186
Main Authors: Gud’, V. M., Zhukovskii, V. V., Zhukovskaya, N. A.
Format: Article
Language:English
Subjects:
Classical Mechanics
Complex Systems
Desorption
Engineering
Engineering Thermodynamics
Heat and Mass Transfer
Industrial Chemistry/Chemical Engineering
Mathematical models
Polymers
Polymethyl methacrylate
Polymethylmethacrylate
Polystyrene resins
Polyvinyl chloride
Sorbents
Sorption
Thermodynamics
Water chemistry
Water vapor
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Summary:The laws governing sorption–desorption of water vapor by microporous sorbents based on linear amorphous polymers (polystyrene, polyvinyl chloride, and polymethyl methacrylate) have been studied. A mathematical model of sorption–desorption hysteresis is presented. Based on the proposed model, it is shown that the sorption– desorption process is affected by the presence of free active centers of the polymer, which interact with water molecules.
ISSN:1062-0125
1573-871X
DOI:10.1007/s10891-022-02584-x