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US 5,175,221 AGranted
Quaternary salts of polymers having repeating quinoxaline moieties
AssigneeExxon Research & Engineering Co.
InventorsLong Y. Chiang, John W. Swirczewski
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Abstract
Novel polymers consisting essentially of frecurring moieties selected from polyquinoxaline and substituted polyquinoxalines are disclosed. These polymers are prepared by contacting 1,2,3,4-tetrahydroquinoxaline or 1,2,3,4-organo substituted tetrahydroquinoxaline compounds with a transition metal sulfide catalyst at elevated temperatures. Also disclosed are quaternary ammonium derivatives of the novel polymers, their preparation and use.
Claims2
A quaternary salt selected from the group consisting of salts having recurring moieties of the formula:
- ##STR11## wherein R.sub.1 and R.sub.2 are the same or different and are selected from the group consisting of hydrogen and organo groups, n is an integer equal to or greater than 2, R' is an alkyl group of from 1 to about 20 carbon atoms, x.sup.- is bromide iodide or chloride and z.sup.- is an anion selected from the group consisting of MeSO.sub.4.sup.-, BF.sub.4.sup.-, ClO.sub.4.sup.- and PF.sub.6.sup.-.
Dependencies are inferred from the claim text.