SYNTHESIS OF POLYENES WITH CHAIN-END MESOGENS VIA LIVING RING-OPENINGMETATHESIS POLYMERIZATION

The incorporation of mesogenic (liquid-crystalline) chain-end function alities in polyacetylene (PA) can be achieved using the 'Durham route' and 'Schrock-type' well defined metal alkylidene initiators. These ch ain-end groups were designed to nucleate the self-organization of the polyenes in thin films prepared by spin coating of the precursor polym er onto MISFET device structures, since improvements of carrier mobili ty and conductivity are expected in well ordered materials.