polyimides containing s-triazine rings i
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Bhimrao D. Sarwade; Prakash P. Wadgaonkar; Sudhakar S. Mahajan
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Article
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1993
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John Wiley and Sons
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English
β 256 KB
## Abstract Eight __s__βtriazineβcontaining polyimides were synthesized by solution polycondensation of diisocyanates having an __s__βtriazine ring with pyromellitic dianhydride in dimethylacetamide. Polyimides derived from __meta__βoriented diisocyanates were amorphous and soluble in dipolar aprot