Method for the preparation of novel polyacetylene-type polymers

Patent · Mon Mar 13 23:00:00 EST 1989

OSTI ID:5853121

Zeigler, J M

Polymerization of acetylenic monomers is achieved by using a catalyst which is the reaction product of a tungsten compound and a reducing agent effective to reduce W(VI) to W(III) and/or (IV), e.g., WCl/sub 6/.(organo-Li, organo-Mg or polysilane). The resultant silylated polymers are of heretofore unachievable high molecular weight and can be used as precursors to a wide variety of new acetylenic polymers by application of substitution reactions.

• Assignee: Dept. of Energy, Washington, DC
• Patent Number(s): US 4812520
• OSTI ID: 5853121
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360601 -- Other Materials-- Preparation & Manufacture
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALKALI METALS
ALKALINE EARTH METALS
CATALYSTS
CHEMICAL PREPARATION
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
ELEMENTS
HYDRIDES
HYDROCARBONS
HYDROGEN COMPOUNDS
KINETICS
LITHIUM
MAGNESIUM
METALS
MONOMERS
ORGANIC COMPOUNDS
ORGANIC SILICON COMPOUNDS
ORGANOMETALLIC COMPOUNDS
POLYACETYLENES
POLYENES
POLYMERIZATION
POLYMERS
PRECURSOR
REACTION KINETICS
REFRACTORY METAL COMPOUNDS
SILANES
SILICON COMPOUNDS
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN COMPOUNDS
YIELDS