Substituted polyacetylene separation membrane
Abstract
A separation membrane useful for gas separation, particularly separation of C.sub.2+ hydrocarbons from natural gas. The invention encompasses the membrane itself, methods of making it and processes for using it. The membrane comprises a polymer having repeating units of a hydrocarbon-based, disubstituted polyacetylene, having the general formula: ##STR1## wherein R.sub.1 is chosen from the group consisting of C.sub.1 -C.sub.4 alkyl and phenyl, and wherein R.sub.2 is chosen from the group consisting of hydrogen and phenyl. In the most preferred embodiment, the membrane comprises poly(4-methyl-2-pentyne) ›PMP!. The membrane exhibits good chemical resistance and has super-glassy properties with regard to separating certain large, condensable permeant species from smaller, less-condensable permeant species. The membranes may also be useful in other fluid separations.
- Inventors:
-
- Palo Alto, CA
- Tokyo, JP
- Issue Date:
- Research Org.:
- Membrane Technology and Research, Inc. (Menlo Park, CA)
- OSTI Identifier:
- 871320
- Patent Number(s):
- 5707423
- Application Number:
- 08/663906
- Assignee:
- Membrane Technology and Research, Inc. (Menlo Park, CA)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
- DOE Contract Number:
- FG03-94ER81811
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- substituted; polyacetylene; separation; membrane; useful; gas; particularly; hydrocarbons; natural; encompasses; methods; processes; comprises; polymer; repeating; units; hydrocarbon-based; disubstituted; formula; str1; chosen; consisting; -c; alkyl; phenyl; hydrogen; preferred; embodiment; poly; 4-methyl-2-pentyne; pmp; exhibits; chemical; resistance; super-glassy; properties; regard; separating; condensable; permeant; species; less-condensable; membranes; fluid; separations; membrane comprises; chemical resistance; natural gas; preferred embodiment; gas separation; separation membrane; repeating units; membrane useful; fluid separation; fluid separations; repeating unit; comprises poly; substituted poly; /95/96/
Citation Formats
Pinnau, Ingo, and Morisato, Atsushi. Substituted polyacetylene separation membrane. United States: N. p., 1998.
Web.
Pinnau, Ingo, & Morisato, Atsushi. Substituted polyacetylene separation membrane. United States.
Pinnau, Ingo, and Morisato, Atsushi. Tue .
"Substituted polyacetylene separation membrane". United States. https://www.osti.gov/servlets/purl/871320.
@article{osti_871320,
title = {Substituted polyacetylene separation membrane},
author = {Pinnau, Ingo and Morisato, Atsushi},
abstractNote = {A separation membrane useful for gas separation, particularly separation of C.sub.2+ hydrocarbons from natural gas. The invention encompasses the membrane itself, methods of making it and processes for using it. The membrane comprises a polymer having repeating units of a hydrocarbon-based, disubstituted polyacetylene, having the general formula: ##STR1## wherein R.sub.1 is chosen from the group consisting of C.sub.1 -C.sub.4 alkyl and phenyl, and wherein R.sub.2 is chosen from the group consisting of hydrogen and phenyl. In the most preferred embodiment, the membrane comprises poly(4-methyl-2-pentyne) ›PMP!. The membrane exhibits good chemical resistance and has super-glassy properties with regard to separating certain large, condensable permeant species from smaller, less-condensable permeant species. The membranes may also be useful in other fluid separations.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 13 00:00:00 EST 1998},
month = {Tue Jan 13 00:00:00 EST 1998}
}
Works referenced in this record:
Polyacetylenes with substituents: Their synthesis and properties
book,
- Masuda, Toshio; Higashimura, Toshinobu
- Catalytical and Radical Polymerization
Polymerization of Methylpentynes by Transition Metal Catalysts: Monomer Structure, Reactivity, and Polymer Properties
journal, May 1982
- Masuda, Toshio; Kawasaki, Masaaki; Okano, Yoshimichi
- Polymer Journal, Vol. 14, Issue 5
Gas permeability of polyacetylenes carrying substituents
journal, April 1985
- Takada, Koichi; Matsuya, Hidehiko; Masuda, Toshio
- Journal of Applied Polymer Science, Vol. 30, Issue 4