Formation of microporous Teflon® PFA membranes via thermally induced phase separation

Michael R. Caplan; Chung Yuan Chiang; Douglas R. Lloyd; Larry Y. Yen

doi:10.1016/S0376-7388(97)00027-6

Formation of microporous Teflon® PFA membranes via thermally induced phase separation

Michael R. Caplan, Chung Yuan Chiang, Douglas R. Lloyd, Larry Y. Yen

Arizona State University

Research output: Contribution to journal › Article › peer-review

38 Scopus citations

Abstract

Poly(tetrafluoroethylene-co-perfluoro-(propyl vinyl ether)) (Teflon® PFA) membranes of a variety of structures have been produced through thermally induced phase separation of Teflon® PFA-chlorotrifluoroethylene melt-blends of different compositions. A phase diagram of the two component system was constructed, and electron microscopy was used to characterize the structures of membranes produced. The morphological characteristics of the Teflon® PFA membranes have been explained on the basis of equilibrium driving forces for liquid-liquid and solid-liquid phase separations.

Original language	English (US)
Pages (from-to)	219-237
Number of pages	19
Journal	Journal of Membrane Science
Volume	130
Issue number	1-2
DOIs	https://doi.org/10.1016/S0376-7388(97)00027-6
State	Published - Jul 23 1997

Keywords

Formation
Microporous membranes
Phase separation
Teflon® PFA

ASJC Scopus subject areas

Biochemistry
Materials Science(all)
Physical and Theoretical Chemistry
Filtration and Separation

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10.1016/S0376-7388(97)00027-6

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title = "Formation of microporous Teflon{\textregistered} PFA membranes via thermally induced phase separation",

abstract = "Poly(tetrafluoroethylene-co-perfluoro-(propyl vinyl ether)) (Teflon{\textregistered} PFA) membranes of a variety of structures have been produced through thermally induced phase separation of Teflon{\textregistered} PFA-chlorotrifluoroethylene melt-blends of different compositions. A phase diagram of the two component system was constructed, and electron microscopy was used to characterize the structures of membranes produced. The morphological characteristics of the Teflon{\textregistered} PFA membranes have been explained on the basis of equilibrium driving forces for liquid-liquid and solid-liquid phase separations.",

keywords = "Formation, Microporous membranes, Phase separation, Teflon{\textregistered} PFA",

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year = "1997",

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T1 - Formation of microporous Teflon® PFA membranes via thermally induced phase separation

AU - Caplan, Michael R.

AU - Chiang, Chung Yuan

AU - Lloyd, Douglas R.

AU - Yen, Larry Y.

PY - 1997/7/23

Y1 - 1997/7/23

N2 - Poly(tetrafluoroethylene-co-perfluoro-(propyl vinyl ether)) (Teflon® PFA) membranes of a variety of structures have been produced through thermally induced phase separation of Teflon® PFA-chlorotrifluoroethylene melt-blends of different compositions. A phase diagram of the two component system was constructed, and electron microscopy was used to characterize the structures of membranes produced. The morphological characteristics of the Teflon® PFA membranes have been explained on the basis of equilibrium driving forces for liquid-liquid and solid-liquid phase separations.

AB - Poly(tetrafluoroethylene-co-perfluoro-(propyl vinyl ether)) (Teflon® PFA) membranes of a variety of structures have been produced through thermally induced phase separation of Teflon® PFA-chlorotrifluoroethylene melt-blends of different compositions. A phase diagram of the two component system was constructed, and electron microscopy was used to characterize the structures of membranes produced. The morphological characteristics of the Teflon® PFA membranes have been explained on the basis of equilibrium driving forces for liquid-liquid and solid-liquid phase separations.

KW - Formation

KW - Microporous membranes

KW - Phase separation

KW - Teflon® PFA

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JO - Journal of Membrane Science

JF - Journal of Membrane Science

IS - 1-2

ER -

Formation of microporous Teflon® PFA membranes via thermally induced phase separation

Abstract

Keywords

ASJC Scopus subject areas

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