Heterocycle sulfone oligomers and blends

Details Heterocycle sulfone oligomers and blends Heterocycle sulfone oligomers and blends

C - Chemistry, Metallurgy

07

D

402/2, 260/300,

C07D 207/452 (2006.01) C07D 209/48 (2006.01) C08G 69/26 (2006.01) C08G 73/06 (2006.01) C08G 73/12 (2006.01) C08J 5/24 (2006.01) C08L 79/08 (2006.01)

Patent

CA 1336098

High thermal stabilities are achievable in linear or multidimensional sulfone, solvent resistant oligomers by incorporated oxazole, thiazole, or imidazole linkages into the oligomer backbone. Blended oligomers of crosslinking oligomers and noncrosslinking compatible polymers are also described. The oligomers include residues of four- functional compounds of the formula: Image (or isomers thereof) wherein M = -CO-, -S-, -O-, -SO2- or -(CF3)2C-; and Y = -OH, -SH, or -NH2. In an improved method, the reactants are condensed at or below ambient temperature in the presence of pyridine in a suitable solvent such as N,N'-dimethylacetamide (DMAC).

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