Journal of Polymer Science Part A: Polymer Chemistry, Vol.34, No.5, 721-728, 1996
Liquid-Crystalline Polyurethanes with Novel Organometallic Complexes
A series of polyurethane organometallic complexes based on novel diols, bis[N-[[2-hydroxyphenyl]methylene]hydroxylethyleneamino]-copper(II) (DBSICu), were synthesized successfully. The products are elastomeric glassy materials or powders. Similar to other polyurethane elastomers, these coordination block copolymers exhibit 2-phase microstructure and thermoplastic properties. 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.