Reactive & Functional Polymers, Vol.66, No.8, 884-887, 2006
Preparation of a new pi-conjugated poly (p-phenylene) type polymer constituted of C-2 chiral repeating units and its solution and film properties
Chiral poly [9, 10-dihydro-9,10-bis(tributylsilyloxy)phenanthrene-2,7-diyl] was prepared by dehalogenative polycondensation of the corresponding chiral dibromo monomer. Light scattering analysis revealed that the chiral polymer had a stronger intermolecular interaction than the corresponding racemic polymer. A cast film of the polymer showed a strong circular dichroism of about 6 degrees mu m(-1), which corresponds to a theta value of 3.7 x 10(6)degrees cm(2) dmol(-1). (C) 2005 Elsevier B.V. All rights reserved.
Keywords:chiral conjugated polymers;poly (p-phenylene) type polymer;poly (9,10-dihydrophenthrene-2,7-diyl);strong circular dichroism in film state;strong intermolecular interaction