Preparation and nonlinear optical characterization of a novel hyperbranched poly(aryl ether ketone) end-functionalized with nickel phthalocyanine

A novel, hyperbranched poly(aryl ether ketone) end-functionalized with nickel phthalocyanine was prepared using 1,3,5-tris[4-(4-fluorobenzoyl)phenoxy]benzene as ‘core’ molecule, 4,4′-(hexafluoroisopropylidene)diphenol as an A2 monomer and nickel phthalocyanine as an end-capping reagent. The polymer displayed good solubility and thermal stability; its third order nonlinear optical susceptibility reached as ≈10−11 esu measured using Z-scan measurement at 532 nm.