Substituted polyacetylene separation membrane
Patent
·
OSTI ID:871320
- Palo Alto, CA
- Tokyo, JP
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.
- Research Organization:
- Membrane Technology and Research, Inc. (Menlo Park, CA)
- DOE Contract Number:
- FG03-94ER81811
- Assignee:
- Membrane Technology and Research, Inc. (Menlo Park, CA)
- Patent Number(s):
- US 5707423
- Application Number:
- 08/663906
- OSTI ID:
- 871320
- Country of Publication:
- United States
- Language:
- English
Polymerization of Methylpentynes by Transition Metal Catalysts: Monomer Structure, Reactivity, and Polymer Properties
|
journal | May 1982 |
Gas permeability of polyacetylenes carrying substituents
|
journal | April 1985 |
Polyacetylenes with substituents: Their synthesis and properties
|
book |
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Related Subjects
-c
/95/96/
4-methyl-2-pentyne
alkyl
chemical
chemical resistance
chosen
comprises
comprises poly
condensable
consisting
disubstituted
embodiment
encompasses
exhibits
fluid
fluid separation
fluid separations
formula
gas
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hydrocarbon-based
hydrocarbons
hydrogen
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pmp
poly
polyacetylene
polymer
preferred
preferred embodiment
processes
properties
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repeating
repeating unit
repeating units
resistance
separating
separation
separation membrane
separations
species
str1
substituted
substituted poly
super-glassy
units
useful
/95/96/
4-methyl-2-pentyne
alkyl
chemical
chemical resistance
chosen
comprises
comprises poly
condensable
consisting
disubstituted
embodiment
encompasses
exhibits
fluid
fluid separation
fluid separations
formula
gas
gas separation
hydrocarbon-based
hydrocarbons
hydrogen
less-condensable
membrane
membrane comprises
membrane useful
membranes
methods
natural
natural gas
particularly
permeant
phenyl
pmp
poly
polyacetylene
polymer
preferred
preferred embodiment
processes
properties
regard
repeating
repeating unit
repeating units
resistance
separating
separation
separation membrane
separations
species
str1
substituted
substituted poly
super-glassy
units
useful