Accession Number : ADD018301

Title :   Thermoset Polymers Made by Blending Poly (Carborane-Siloxane/Silane-Acetylene) and Poly (Siloxane/Silane-Acetylene).

Descriptive Note : Patent Application, Filed 13 Nov 96,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Keller, Teddy M ; Son, David Y

PDF Url : ADD018301

Report Date : 13 Nov 1996

Pagination or Media Count : 39

Abstract : An organoboron thermoset polymer precursor composition is made up of a mixture of a first linear polymer having a repeating unit comprising at least one carboranyl group, at least one silyl or siloxyl groups, and at least one acetylenic group, and a second linear polymer having a repeating unit comprising at least one silyl or siloxyl groups and at least one acetylenic moiety and wherein the second linear polymer does not contain a carboranyl group. The amount of carborane in the thermoset can be controlled by varying the relative amount of the carborane-containing polymer and the non-carborane-containing polymer in the precursor composition. The organoboron thermoset polymer precursor is used to make a thermoset by curing the precursor composition with heat or light, and to make a ceramic by pyrolyzing the precursor composition or a thermoset made from the precursor composition.

Descriptors :   *POLYMERS, *SILOXANES, *SILANES, *THERMOSETTING PLASTICS, *CARBORANES, *ACETYLENES, LINEAR SYSTEMS, CONTROL, PATENT APPLICATIONS, PRECURSORS, CERAMIC MATERIALS, ORGANIC COMPOUNDS, CURING, BORON, PYROLYSIS

Subject Categories : Organic Chemistry
      Polymer Chemistry
      Ceramics, Refractories and Glass
      Plastics

Distribution Statement : APPROVED FOR PUBLIC RELEASE