Accordion-like polymers for nonlinear applications
    2.
    发明授权
    Accordion-like polymers for nonlinear applications 失效
    用于非线性应用的手风琴式聚合物

    公开(公告)号:US5247055A

    公开(公告)日:1993-09-21

    申请号:US856437

    申请日:1992-03-20

    摘要: The present invention discloses new polymers which can assume an accordion-like conformation of the backbone. These polymers are prepared by the copolymerization of two difuntional, chemically precoupled precursors to chromophoric units. The resulting polymers have a head-to-head, tail-to-tail topology (a syndioregic arrangement of rigid units along the polymer backbone), and the molecular units are designed to fold into an "accordion" conformation. This useful microstructure (a three-dimensional conformation) forms spontaneously (self-assembles); or, it can be brought about by field-assisted processing. Films and fibers of these polymers have useful second-order nonlinear optical properties, and may be used for the modulation and switching of optical communications signals.

    摘要翻译: 本发明公开了可以承担骨架的手风琴状构象的新型聚合物。 这些聚合物通过将两种分散的化学预键合的前体共聚合到发色单元来制备。 所得聚合物具有头对头,尾至尾拓扑(沿着聚合物主链的刚性单元的同步排列),并且分子单元被设计成折叠成“手风琴”构型。 这种有用的微结构(三维构象)自发形成(自组装); 或者可以通过现场辅助处理来实现。 这些聚合物的膜和纤维具有有用的二阶非线性光学性质,并且可以用于光通信信号的调制和切换。

    Coumarin dyes and side-chain coumarin dye-substituted polymers which
exhibit nonlinear optical properties
    3.
    发明授权
    Coumarin dyes and side-chain coumarin dye-substituted polymers which exhibit nonlinear optical properties 失效
    香豆素染料和侧链香豆素染料取代聚合物具有非线性光学性质

    公开(公告)号:US5286803A

    公开(公告)日:1994-02-15

    申请号:US621689

    申请日:1990-11-26

    摘要: Coumarin dyes such as alkylaminocoumarincarboxamides which have functional hydroxyl groups or which are chemically attached to vinyl monomers such as methacrylic acid. The dyes which are chemically attached to vinyl monomers can be copolymerized, e.g. with acrylic monomers to produce a coumarin dye-containing polymer. The dyes which have functional hydroxyl groups can be reacted with an existing polymer or copolymer, e.g. a copolymer of styrene and acrylic acid to esterify the acid groups of the polymer to form a coumarin dye-containing polymer. Such coumarin dye-containing polymers are formed into films and fibers which when poled in an electric field yield a film or fiber with nonlinear optical properties.

    摘要翻译: 香豆素染料如烷基氨基香豆素酰胺,其具有官能羟基或化学连接到乙烯基单体如甲基丙烯酸上。 与乙烯基单体化学连接的染料可以共聚,例如 与丙烯酸单体一起生产含香豆素染料的聚合物。 具有官能羟基的染料可以与现有的聚合物或共聚物反应。 苯乙烯和丙烯酸的共聚物以使聚合物的酸基酯化以形成含香豆素染料的聚合物。 这种含香豆素染料的聚合物形成为在电场中极化的膜和纤维产生具有非线性光学性质的膜或纤维。