Oligomer compositions of polyaryloxypyridines with acetylenic end groups, their manufacture and lattices obtained by thermal polymerization thereof
US4814403A · kind A · utility
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Key dates
| Filing date | Oct 8, 1987 |
| Grant date | Mar 21, 1989 |
| Priority date | — |
| Expiry date | Oct 8, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2650/60
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Oligomer compositions of polyaryloxypyridine with acetylenic end groups are btained by formation of an oligomer composition of polyaryloxypyridine with halogenated end groups from an alkaline diphenolate and a dihalogenopyridine, followed with an ethynylation reaction. The average polycondensation degree may range from 1 to 50. Theses compositions can be used to form cross-linked lattices by polyaddition of the ethynyl groups.
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