Poly(vinyl butyral)/poly(ethylene glycol) blends for gas separation membranes: Coefficients of diffusion and permeability of oxygen

被引：2
|
作者：
Kamalova, D., I [1 ]
Abdrazakova, L. R. [1 ]
Salakhov, M. Kh [1 ]
机构：
[1] Kazan Volga Reg Fed Univ, 18 Kremlevskaya, Kazan 420008, Russia
来源：
JOURNAL OF NON-CRYSTALLINE SOLIDS | 2020年 / 547卷
关键词：
Polymer blends; Coefficients of diffusion and permeability; Gas separation membranes; FREE-VOLUME; ULTRAFILTRATION MEMBRANES; TRANSPORT PROPERTIES; PERMEATION; POLYMERS;
D O I：
10.1016/j.jnoncrysol.2020.120304
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Coefficients of diffusion and permeability of oxygen in PVB/PEG10 000 blends with different compositions are determined. We investigate the distribution of free volume in the polymer blends to predict coefficients of diffusion and permeability for gas separation membranes. We determine the temperatures at which conformational transitions of low-weight molecules (probes) introduced into polymeric blends are frozen. We use the FTIR spectroscopic method of conformational probes to determine the effective sizes of mobile free volume elements (FVE) for the blends of poly(vinyl butyral) (PVB) and poly(ethylene glycol) (PEG10 000).
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页数：5
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