Accession Number:

AD0750380

Title:

High-Temperature Polyamides from New Hexahydrobenzodipyrrole Monomers

Descriptive Note:

Technical Report

Corporate Author:

ARMY NATICK LABS MA NATICK

Personal Author(s):

• Stapler,John T.
• Bornstein,Joseph

Report Date:

1972-01-01

Pagination or Media Count:

15.0

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
• POLYAMIDE PLASTICS
• PHYSICAL PROPERTIES
• IMIDES
• SOLUBILITY
• DIFFERENTIAL THERMAL ANALYSIS
• THERMAL STABILITY
• NITROGEN HETEROCYCLIC COMPOUNDS
• MONOMERS
• chemical synthesis
• high temperature

Subject Categories:

• Organic Chemistry
• Polymer Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE