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Indexed by:期刊论文

Date of Publication:2000-05-01

Journal:CHINESE JOURNAL OF CHEMISTRY

Included Journals:Scopus、SCIE

Volume:18

Issue:3

Page Number:414-417

ISSN No.:1001-604X

Key Words:poly(aryl ether amide)s; phthalazinone; heterocyclic diamine; direct polymerization

Abstract:Two novel heterocyclic diamine monomers: 1,2-dihydro-2-(4-aminophenyl)-4-[4-(4-aminophenoxy) phenyl]-(2H)-phthalazin-1-one and 1, 2-dihydro-2-(4-aminophenyl)-4-[ 4-( 4-aminophenoxy)-3, 5-dimethylphenyl]-(2H)-phthalazin-1-one were successfully synthesized using readily available heterocyclic bisphenol-like monomers through two steps In high yield. A series of novel poly(aryl ether amide)s containing the phthalazinone moiety with inherent viscosities of 1.16-1.67 dL/g were prepared by the direct polymerization of the novel diamines and aromatic dicarboxylic acids using triphenyl phosphite and pyridine as condensing agents. The polymers were readily soluble in a variety of solvents such as N, N-dimethylformamide (DMF), N, N-dimethylacetamide (DMAc), dimethylsulfoxide ( DMSO), N-methyl-2-pyrrolidinone (NMP), and pyridine. The polymers had high glass transition temperatures (T-g) in the 291-329 degrees C range.