Accession Number : AD0164442
Title : Fused Ring Tetraamino Compound, the Tetratosylate Thereof, and Their Synthesis.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C
Personal Author(s) : Arnold,Fred E.
Report Date : 07 NOV 1972
Pagination or Media Count : 4
Abstract : This invention comprises new thermally stable polymeric compositions, starting compounds and intermediates and methods for preparing the same. The polymers are prepared by the condensation of an aromatic tetraacid, such as 1,4,5,8-naphthalene tetracarboxylic acid, and a tetraamino fused ring compound, namely 2,3,11,12-tetraamino-diquinoxal(2,3-e, 2',3'-1)pyrene. This fused ring tetraamino compound is prepared from the 1,2-ditosylate of 1,2,4,5-tetraaminobenzene and 1,2,6,7-tetraketopyrene. With appropriate tetraacids or their derivatives and with sufficient reaction of the reagents, ladder polymers can be formed.
Descriptors : *Patents, *Heat resistant plastics, *Polycyclic compounds, Synthesis(Chemistry), Thermal stability, Condensation reactions, Nitrogen heterocyclic compounds
Subject Categories : Organic Chemistry
Distribution Statement : APPROVED FOR PUBLIC RELEASE