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Langmuir-Blodgett films of polymethacrylates with side chains containing functionalized aromatic schiff's bases
Authors:T Takahashi  P Miller  Y M Chen  L Samuelson  D Galotti  B K Mandal  J Kumar  S K Tripathy
Abstract:Langmuir-Blodgett (LB) film formation has been investigated for polymers in which non-linear optical (NLO) moieties are attached to the side chain of a polymethacrylate (PMA) backbone. Polymer monolayers were successfully transferred onto hydrophilic glass substrates using a moving-wall type LB trough. The LB films were characterized by pressure-area isotherms, polarized ultraviolet visible spectra, ellipsometry, and second harmonic generation measurements. The characterization shows that NLO moieties in the side chain are inclined at a shallow angle to the plane of the substrate. The second-order nonlinear optical coefficient and molecular hyperpolarizability were also calculated. © 1993 John Wiley & Sons, Inc.
Keywords:Langmuir-Blodgett film formation by polymethacrylates with nonlinear optical side chains  polymethacrylate films by Langmuir-Blodgett technique  configuration of nonlinear optical substituents in  orientation of nonlinear optical moieties in Langmuir-Blodgett films of substituted polymethacrylates
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