High Strength, High Temperature Polymeric Fibers

Abstract

The synthesis of specifically ordered heterocyclic polymer systems for evaluation as high tenacity fiber candidates is described. The AF-Y-56 fiber has been generated by homopolymerization of 3,4- diaminobenzoic acid hydrochloride in polyphosphoric acid. The A-B POLYBENZIMIDAZOLE HAS BEEN OBTAINED WITH INHERENT VISCOSITIES AS HIGH AS 17.1 IN SULFURIC ACID, REFLECTING AN AGGLOMERATE MACROSTRUCTURE IN SOLUTION. A variety of heat-treatment schemes have been investigated. (P.S.-PL)

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1972
Accession Number
AD0907589

Entities

People

  • Chadwick B. Delano
  • R. Randolph Doyle
  • Walter P. Fitzgerald Jr.

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Alcohols
  • Amides
  • Anhydrides
  • Ethers
  • Fiber Spinning
  • Fibers
  • Formic Acid
  • Heat Energy
  • Heat Treatment
  • High Temperature
  • Hydroxides
  • Materials
  • Materials Laboratories
  • Mechanical Properties
  • Molecular Weight
  • Tensile Properties
  • Test And Evaluation

Fields of Study

  • Chemistry

Readers

  • Polymer Science and Technology
  • Reinforced Composite Materials