Accession Number : ADA031328


Title :   Reactive Plasticizers for High Temperature Quinoxaline Thermoplastics


Descriptive Note : Final technical rept. Nov 1974-Oct 1975


Corporate Author : AIR FORCE MATERIALS LAB WRIGHT-PATTERSON AFB OH


Personal Author(s) : Kovar, R F ; Ehlers, G L ; Arnold, F


Full Text : http://www.dtic.mil/dtic/tr/fulltext/u2/a031328.pdf


Report Date : Jun 1976


Pagination or Media Count : 29


Abstract : This report is concerned with a novel approach to the processing of high temperature thermoplastics. A series of bis(ethynylquinoxaline) monomers were prepared to demonstrate the feasibility of using reactive plasticizers in the processing of polyphenylquinoxaline thermoplastics. The monomers were prepared by the reaction of 4(3-ethynylphenoxy)-o-phenylenediamine with various aromatic 1,2-dicarbonyl compounds in m-cresol. The reactive plasticizer lowers the effective softening point of the thermoplastic resin during processing and then becomes dormant by reacting with itself or the host thermoplastic. Mixtures of monomer and thermoplastic were studied with respect to compatibility, Tg depression and plasticizer deactivation.


Descriptors :   *THERMOPLASTIC RESINS , *PLASTICIZERS , *QUINOXALINES , EXPERIMENTAL DATA , POLYMERS , HIGH TEMPERATURE , SYNTHESIS(CHEMISTRY) , REACTIVITIES , CHEMICAL REACTIONS , MONOMERS , AROMATIC COMPOUNDS , CURING , INFRARED SPECTRA , CARBONYL COMPOUNDS , DEACTIVATION , SOFTENING POINTS , PHENYLENEDIAMINES


Subject Categories : Polymer Chemistry
      Miscellaneous Materials
      Plastics


Distribution Statement : APPROVED FOR PUBLIC RELEASE