LIQUID-CRYSTALLINE POLYURETHANES WITH NOVEL ORGANOMETALLIC COMPLEXES

A series of polyurethane organometallic complexes based on novel diols , phenyl]methylene]hydroxylethyleneamino]-copper(II) (DBSICu), were sy nthesized successfully. The products are elastomeric glassy materials or powders. Similar to other polyurethane elastomers, these coordinati on block copolymers exhibit 2-phase microstructure and thermoplastic p roperties. It is interesting to note that some of these polyurethanes show a Schlieren pattern under the polarizing optical microscope. The liquid crystalline properties of DBSICu and the coordination polymers are studied in detail in this study. (C) 1996 John Wiley & Sons, Inc.