Diffusion of solvents in poly(vinyl acetate) and partially and fully hydrolyzed poly(vinyl alcohol)

被引：8

作者：

Zielinski, John M. ^{[1
]}

Hamedi, Mourad ^{[2
]}

Balashova, Ida M. ^{[3
]}

Danner, Ronald P. ^{[3
]}

机构：

[1] Intertek Chem & Pharmaceut, Allentown, PA 18195 USA

[2] Merck MMD, Rahway, NJ 07065 USA

[3] Penn State Univ, Dept Chem Engn, University Pk, PA 16802 USA

来源：

POLYMER INTERNATIONAL | 2014年 / 63卷 / 02期

关键词：

diffusion; poly(vinyl acetate); poly(vinyl alcohol); free-volume model; inverse gas chromatography; gravimetric sorption; INVERSE GAS-CHROMATOGRAPHY; FREE-VOLUME; WATER; POLYVINYL-ALCOHOL); SPECTROSCOPY; POLYMERS; LIQUIDS; SYSTEMS; FILMS;

D O I：

10.1002/pi.4487

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Diffusivities of methyl acetate, methanol and water in poly(vinyl acetate) and fully and partially hydrolyzed poly(vinyl alcohol) have been measured by capillary column inverse gas chromatography and/or gravimetric sorption. Data from the literature have been used when available for comparison. Overall the diffusivities show good consistency in terms of their temperature and concentration dependences. The free-volume model has been applied to all the data with excellent results. In most cases the dramatic changes in diffusivities with temperature and concentration can be captured using only a few experimental data points and two regression parameters. This demonstrates that the free-volume theory is a valuable tool for the design of equipment for processing and devolatilization of polymer-solvent systems. (c) 2013 Society of Chemical Industry

引用

页码：221 / 227

页数：7

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