Preparation of polymers with NLO-active side groups and the use thereof

US5483005A · kind A · utility

Assignee

• BASF SE

Inventors

• Karl-Heinz Etzbach · Bischofswerda, DE
• Stefan Beckmann · Mannheim, DE

Key dates

• Filing date: Nov 4, 1993
• Grant date: Jan 9, 1996
• Expiry date: Nov 4, 2013

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B69/10
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A process for preparing (meth)acrylate polymers with lateral non-linear optical chromophores and molecular weights of from 5000 to 500,000, comprises reacting polymers of (meth)acryloyl isocyanate in solution with D-.omega.-hydroxyalkyl chromophores of the formula (I) ##STR1## where D is an electron donor, PA0 A is an electron acceptor, PA0 R.sup.1, R.sup.2, R.sup.3 and R.sup.4 can be identical or different and are each H, alkyl, cycloalkyl, alkoxy or R.sup.3 and R.sup.4 are each CN, NO.sub.2 or CHO or R.sup.1 and R.sup.2, or R.sup.3 and R.sup.4, together form a fused-on ring, PA0 X is CH and/or N and PA0 m is an integer from 2 to 11. The products are suitable for optical components in communications technology.