| 摘要 |
The present invention relates to a monomer having the general formula (I)
in which
R 1 and R 2 stand, independently of one another, for hydrogen, for an optionally substituted C 1 -C 20 -alkyl group or C 1 -C 20 -oxyalkyl group, optionally interrupted by 1 to 5 oxygen atoms and/or sulfur atoms, or jointly for an optionally substituted C 1 -C 20 -dioxyalkylene group or C 6 -C 20 -dioxyarylene group,
wherein the monomer has a colour in a range of
- a Hazen colour number determined according to test method described herein of at least 20,
to
- a Gardner colour number determined according to test method described herein of not more than5. The present invention also relates to a method for the manufacture of a capacitor, a capacitor obtained by this method and to the use of a monomer. |
