Applications of nonconjugated conductive polymers
US7641977B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jan 28, 2005 |
| Grant date | Jan 5, 2010 |
| Priority date | — |
| Expiry date | Sep 28, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31931
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Nonconjugated conductive polymers, which are all polymers that have a ratio of double bonds to total bonds of less than ½ are doped or used to produce compositions with unexpected characteristics in this invention. A light emitting structure can be produced by coating a quartz or glass substrate with a high work function metal which has a nonconjugated conductive polymer film on the metal and a low work function metal deposited on the nonconjugated polymer. The electrical conductivity of nonconjugated polymers can be greatly increased by doping the polymer with a dopant. The mechanical and elastomeric properties of a nonconjugated polymer can be changed by doping the polymer. The electro-optic effect and the refractive index of a nonconjugated conductive polymer can be greatly changed by doping the polymer. Among the nonconjugated polymers are styrene-butadiene-rubber (SBR), poly(β-pinene) and cis-1-4 polyisoprene. The enhancement of the nonlinear optical effect is due to the special charge-transfer complex structure and formation of nano-optical domains. Among the doping materials are electron acceptors such as iodine and antimony pentachloride. A heated mixture of iodine and sulf…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.