Electrically conducting aromatic azopolymers and method of preparation
US4511492A · kind A · utility
9Cited by
10References
14Claims
0Family size
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Key dates
| Filing date | Oct 19, 1983 |
| Grant date | Apr 16, 1985 |
| Priority date | — |
| Expiry date | Oct 19, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S534/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Aromatic azopolymers can be prepared in generally high yield by oxidatively coupling aromatic diamines using perborate salts. Glacial acetic acid is an effective solvent, and the presence or boric acid in the reaction medium sometimes improves product yield. Polymer yields over 70% generally are observed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.