Reflective and conductive star polymers
US6025462A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 3, 1998 |
| Grant date | Feb 15, 2000 |
| Priority date | — |
| Expiry date | Mar 3, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K85/113
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Conductive polymers having a star structure comprising a central core with multiple attachment sites and conjugated charge transporting arms radiating therefrom. The cores are derived from hyperbranched polymers, dendrimers, or other molecules with a multiplicity of attachment sites. The arms are derived from conjugated oligomers and polymers such as polythiophene, polyaniline or polyphenylene. The subject polymers allow assembly of the macromolecules in all three dimensions in the solid state. A ramification of the compact assembly is the realization of highly reflective, smooth coatings simply applied from solution. A preferred embodiment having a 1,3,5 hyperbranched polyphenylene core and poly (3-hexylthiophene) arms provides lustrous reflective gold coatings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.