Macromolecular architecture of new polymers via construction of new side groups within PPV chemical structure to enhance its properties for flat-panel displays

A new macromolecular architecture approach to the synthesis of new polymeri c light-emitting materials is presented. Using this novel approach the mani pulation of the chain length in the side group of the poly(p-phenylene viny lene) (PPV) based materials as well as the size of the ring located within the side group, enabled us to enhance photoluminescence (PL) properties of PPV related compounds. It has been found that the longer the chain length o f side group and the smaller the ring size could result in much better PL. The effect of oxygen on the PL properties of these new materials was also e xamined. It was found that the PL intensity could be decreased more than fi ve times than initial values over 10 min in the air compared with the same measurements in vacuum for the same period of time. (C) 2001 Elsevier Scien ce B.V. All rights reserved.