YE Cheng, DONG Hai-ou. A NONLINEAR OPTICAL SIDE CHAINS POLYMER: PARA [4- (2,2-DICYANOVINYL)-4'-(N-ETHYL-N-2-OXYETHYL) BENZENE-AZO-BENZENE] POLYSTYRENE[J]. Acta Polymerica Sinica, 1991,(3):280-285.
YE Cheng, DONG Hai-ou. A NONLINEAR OPTICAL SIDE CHAINS POLYMER: PARA [4- (2,2-DICYANOVINYL)-4'-(N-ETHYL-N-2-OXYETHYL) BENZENE-AZO-BENZENE] POLYSTYRENE[J]. Acta Polymerica Sinica, 1991,(3):280-285.DOI:
Azo coupling method is employed in the synthesis of polystyrene copolymer with high second order nonlinear optical activity azo dye side chains which contain dicyanovinyl as electronic acceptor and alkylamino group as donor. The characterizations of copolymer show that the chromophore contents are over 40 mol%. Copolymer is soluble easily in organic solvents such as acetone