Soluble silylated polyacetylene derivatives and their use as percursors to novel polyacetylene-type polymers
This patent describes a soluble polymer or copolymer having -C(R)=C(R)/sub 4/- as a majority of repeating structural units and a molecular weight M/sub eta/ {ge} about 10,000. The polymer or copolymer being the product of the polymerization of acetylenic monomers at a temperature within the range of -10{sup 0} to 150{sup 0}C in an inert atmosphere and in the presence of a tungsten (III or IV) compound and a cocatalyst selected from the group consisting of organolithium compounds, organomagnesium compounds, polysilanes, and compounds containing a Si-Si, P-P, S-S, Ge-Ge, As-As, Sn-Sn, Sb-Sb, or Te-Te bond. The acetylenic monomers having the formula R-C(R)=C(R)/sub 4/, wherein R is R/sub 1/R/sub 2/R/sub 3/Si, in which eacy R/sup 1/, R/sub 2/, and R/sub 3/ is C/sub 1-4/-(eta- or sec-)alkyl, C/sub 2-4/-alkenyl, C/sub 6-14/-aryl, C/sub 7-17/ heteroaryl, C/sub 7-17/-alkaryl, C/sub 7-17/aralkyl, C/sub 3-12/-cycloalkyl, C/sub 2-4/-(eta- or sec-)-alkyl wherein one CH/sub 2/ group is replaced by -O-, -S-, -COO-, or -OOC-; H, or groups recited for R/sub 1/, R/sub 2/, and R/sub 3/; R/sub 4/ is H or one of the groups recited for R/sub 1/, R/sub 2/, and R/sub 3/ except C/sub 2-4/-alkenyl, with the provisos that R and R/sub 4/ must not both be H at the same time and that the combination of R and R/sub 4/ be sterically compatible with the polymerization.
- Assignee:
- U.S. Dept. of Energy, Washington, DC
- Patent Number(s):
- US 4866147
- Application Number:
- PPN: US 6909801A
- OSTI ID:
- 5451137
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020400* -- Petroleum-- Processing
023000 -- Petroleum-- Properties & Composition
CATALYSTS
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
COPOLYMERS
DERIVATIZATION
HYDROCARBONS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
POLYACETYLENES
POLYENES
POLYMERS
REFRACTORY METAL COMPOUNDS
SOLUBILITY
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN COMPOUNDS