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- W1230071241 abstract "The direct polymerization of an unsymmetrical kink non-coplanar heterocyclic diarnine (1) with various aromatic bis(trimellitimide)s (2a-e) using triphenyl phosphite and pyridine as condensing agents could generate a series of new aromatic poly(amide imide)s (3a-e) containing the kink non-coplanar phthalazinone heterocyclic units in the polymer main chains with inherent viscosities of 0.58-0.66 dL/g. The polymers are readily soluble in a variety of solvents such as N,Ndimethylformamide, N,N-dimethylacetamide, dimethyl sulfoxide, N-methy1-2-pyrrolidinone, pyridine and m-cresol and can be cast to form flexible and tough films. The glass transition temperatures of polymers (Ts) are in the range of 301-327℃,and the temperatures for 5% weight loss in nitrogen are in the range of 498-521 ℃." @default.
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- W1230071241 date "2004-01-01" @default.
- W1230071241 modified "2023-09-23" @default.
- W1230071241 title "SYNTHESIS OF NEW AROMATIC POLY（AMIDE IMIDE）S FROM UNSYMMETRICAL EXTENDED DIAMINE CONTAINING A PHTHALAZINONE MOIETY" @default.
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