fa عمومى General كاربردي Applicable <p style="text-align: justify;">Layer-by-layer (LBL) electrostatic assembly of poly-electrolytes is proving to be an increasingly rich and versatile technique for the formation of multilayered thin films with a wide range of electrical, magnetic, and optical properties. In the present work we synthesized a new nonlinear optical (NLO) maleic acid copolymer containing Disperse Red 1 moieties, built-up multilayer assemblies by alternate adsorption of poly (allylamine hydrochloride) (PAH) and maleic copolymer derivative, and carried out an investigation on their second harmonic generation (SHG) properties. The resulting multilayer assemblies exhibit SHG which arises from the non-centrosymmetric alignment of the chromophore in the copolymer. The SHG signal increases with the number of chromophore-containing polymer layers, up to 5 layers. Further assembly reduces the signal</p> Layer-by-Layer, Electrostatic assembly, Maleic anhydride copolymer, Second harmonic generation, Nonlinear optics 1 6 http://ijop.ir/browse.php?a_code=A-10-1-41&slc_lang=fa&sid=1 G. Aldea 10031947532846001864 10031947532846001864 Yes Romanian Academy, "Petru Poni” Institute of Macromolecular Chemistry Iasi H. Gutiérrez 10031947532846001865 10031947532846001865 No Laboratorio de Electronica - Escuela de Quimica, Facultad de Ciencias J. M. Nunzi 10031947532846001866 10031947532846001866 No Université d’Angers, PPF Cellules Solaires Photovoltaïques Plastiques, Laboratoire POMA G. C. Chitanu 10031947532846001867 10031947532846001867 No Romanian Academy, "Petru Poni” Institute of Macromolecular Chemistry Iasi M. Sylla 10031947532846001868 10031947532846001868 No Université d’Angers, PPF Cellules Solaires Photovoltaïques Plastiques, Laboratoire POMA B. C. Simionescu 10031947532846001869 10031947532846001869 No Romanian Academy, "Petru Poni” Institute of Macromolecular Chemistry Iasi