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    • 1. 发明授权
    • Optical component based on Langmuir-Blodgett layers
    • 基于Langmuir-Blodgett层的光学元件
    • US5517350A
    • 1996-05-14
    • US366022
    • 1994-12-29
    • Ivan CabreraUwe FalkWerner HickelDonald LupoAndreas MayerGeorg PawlowskiUde Scheunemann
    • Ivan CabreraUwe FalkWerner HickelDonald LupoAndreas MayerGeorg PawlowskiUde Scheunemann
    • B32B7/02C08J5/18C08L101/00G02F1/35G02F1/355G02F1/361
    • G02F1/3618B82Y20/00G02F1/3616
    • An optical component comprises an electromagnetic radiation-transparent polymeric medium having a second-order susceptibility of at least 10.sup.-9 electrostatic units where this polymeric medium comprises compounds having polar-aligned noncentrosymmetric molecular dipoles which have as structural element an electron acceptor which is bound to an electron donor via a conjugated .pi.-electron system, which makes possible an oscillation of the molecular dipole between a ground state having a first dipole moment and an electronically excited state having a second dipole moment different from the first, and the nonionic polymeric medium comprises an alternating arrangement of at least one Langmuir-Blodgett film each of at least two different nonionic polymers having nonlinear optical properties. Besides high mechanical and chemical stability the optical component of the invention has excellent nonlinear optical properties, for example frequency-doubling.
    • 光学部件包括具有至少10-9个静电单元的二阶易感性的电磁辐射透明聚合物介质,其中该聚合物介质包含具有极性取向的非中心对称分子偶极子的化合物,其具有作为结构元件的电子受体,其结合到 通过共轭π电子系统的电子给体,其使得可能在具有第一偶极矩的基态和具有不同于第一偶极矩的第二偶极矩的电子激发态之间的分子偶极子的振荡,并且非离子聚合物介质包括 具有至少两种具有非线性光学性质的至少两种不同的非离子聚合物的至少一种Langmuir-Blodgett膜的交替排列。 除了高机械和化学稳定性外,本发明的光学部件具有优异的非线性光学性质,例如倍频。
    • 7. 发明授权
    • Polyamide and film made from at least one monomolecular layer of a
polyamide
    • 聚酰胺和薄膜从一个单一分子层聚酰胺制成
    • US5166307A
    • 1992-11-24
    • US402863
    • 1989-09-05
    • Harald CherdronWerner PrassUde ScheunemannDonald Lupo
    • Harald CherdronWerner PrassUde ScheunemannDonald Lupo
    • B05D1/20B32B27/34C08G69/26C08J5/18
    • B05D1/202B82Y30/00B82Y40/00C08G69/26Y10T428/265Y10T428/31725Y10T428/31728
    • Polyamides of the general formula [N(A)-X-N(B)-CO-Y-CO-].sub.n are described, in which Y denotes a divalent group, X a divalent radical whose chain contains at least two carbon atoms, A and B independently of one another denote H or a C.sub.1 to C.sub.26 alkyl group and n denotes an integer greater than 4. The said polyamides contain at least one alkyl group of C.sub.6 to C.sub.26 per repeating unit. The groups X and/or Y contain at leat one CH.sub.2 group in the chain. The polyamides are prepared by reaction of a diamine of the formula NHA-X-NHB with an about equimolar amount of a reactive derivative of a dicarboxylic acid of the formula COOH-Y-COOH. The polyamides obtained can be used in order to prepare highly ordered monomolecular LB films on a support. For this purpose, the polyamide is dissolved in a volatile organic solvent which is immiscible with water and the solution is spread on the water/air interface. After evaporation of the solvent the layer is compressed and transferred to a solid support by the LB technique. The film is very stable and can be used to prepare optical waveguide systems, filters for optical purposes or protective layers.
    • 描述了通式[N(A)-XN(B)-CO-Y-CO-] n的聚酰胺,其中Y表示二价基团,X是其链含有至少两个碳原子的二价基团,A和 B彼此独立地表示H或C1至C26烷基,n表示大于4的整数。所述聚酰胺每个重复单元含有至少一个C6至C26的烷基。 基团X和/或Y在链中含有一个CH 2基团。 聚酰胺通过式NHA-X-NHB的二胺与约等摩尔量的式COOH -Y-COOH的二羧酸的活性衍生物的反应来制备。 获得的聚酰胺可用于在载体上制备高度有序的单分子LB膜。 为此,将聚酰胺溶解在与水不混溶的挥发性有机溶剂中,并将溶液铺展在水/空气界面上。 溶剂蒸发后,将层压缩并通过LB技术转移至固体支持物。 该膜非常稳定,可用于制备光波导系统,用于光学目的的滤光片或保护层。