ABSTRACT
Polymeric thin films having second-order nonlinear optical (NLO) properties were fabricated by the Langmuir—Blodgett—Kuhn (LBK) technique. Mainchain polymers were designed and synthesized with chromophores in the syndioregic (head-to-head) configuration. Multilayer-(AB) n -films were fabricated from two polymers by Y-type deposition. In Polymer A, the chromophore’s electron donating end was connected to a relatively hydrophobic bridging unit, and its electron accepting end was connected to a relatively hydrophilic bridging unit. The converse was true for Polymer B. Microstructural information about these multilayer polymer films was obtained from polarized optical measurements.
