Accession Number : AD0864104

Title :   Quinoxaline Ladder Polymers for High Temperature Laminating Resins and Structural Adhesives.

Descriptive Note : Annual rept. 1 Jun 68-31 May 69,

Corporate Author : HUGHES AIRCRAFT CO CULVER CITY CALIF AEROSPACE GROUP

Personal Author(s) : Miller,Leroy J.

Report Date : DEC 1969

Pagination or Media Count : 104

Abstract : Quinoxaline ladder polymers deived from 2,3-diphenoxy-6,7-diaminoquinoxaline release not more than 90% of the phenol theoretically available from polymerization. Glass cloth reinforced composites prepared from these resins had low flexural strength. 2,3,7,8-Tetrasubstituted-1,4,6,9-tetraazaanthracenes with different vicinal groups were synthesized for copolymerization with 1,2,4,5-tetraaminobenzene. N-Phenyl-substituted quinoxaline ladder polymers have been synthesized by copolymerization of 2,3,7,8-tetraphenoxy- and 2,3,7,8-tetraanilino-1,4,6,9-tetraazaanthracene. (Author, modified-PL).

Descriptors :   (*HEAT RESISTANT MATERIALS, POLYMERS), (*LAMINATES, HEAT RESISTANT MATERIALS), (*NITROGEN HETEROCYCLIC COMPOUNDS, POLYMERIZATION), COMPOSITE MATERIALS, REINFORCED PLASTICS, SYNTHESIS(CHEMISTRY), COPOLYMERIZATION, INFRARED SPECTRA, ADHESIVES

Subject Categories : Polymer Chemistry
      Adhesives, Seals and Binders
      Laminates and Composite Materials

Distribution Statement : APPROVED FOR PUBLIC RELEASE