Accession Number : AD0750380

Title :   High-Temperature Polyamides from New Hexahydrobenzodipyrrole Monomers,

Corporate Author : ARMY NATICK LABS MASS

Personal Author(s) : Stapler,John T. ; Bornstein,Joseph

Report Date : 1972

Pagination or Media Count : 14

Abstract : The Army has a high priority program to provide protective clothing to air and tank crewmen who are subject to possible exposure to intense heat and flame as a result of accident or enemy action. The paper reports on the synthesis of a new class of heterocyclic polyamides made possible by the successful synthesis and isolation of two new hexahydrobenzodipyrrole monomers. These newly prepared monomers reacted readily with diacid chlorides to form polyamides. A number of such polymers has been achieved with a selected group of diacid chlorides and a limited characterization by standard techniques provides data indicating that outstanding thermal properties are possible.

Descriptors :   (*HEAT RESISTANT PLASTICS, SYNTHESIS(CHEMISTRY)), (*POLYAMIDE PLASTICS, SYNTHESIS(CHEMISTRY)), PHYSICAL PROPERTIES, IMIDES, SOLUBILITY, THERMOGRAVIMETRIC ANALYSIS, DIFFERENTIAL THERMAL ANALYSIS, THERMAL STABILITY, NITROGEN HETEROCYCLIC COMPOUNDS

Subject Categories : Organic Chemistry
      Polymer Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE