Optical article exhibiting a large first hyperpolarizability
    3.
    发明授权
    Optical article exhibiting a large first hyperpolarizability 失效
    具有大的第一超极化性的光学制品

    公开(公告)号:US5501821A

    公开(公告)日:1996-03-26

    申请号:US19815

    申请日:1993-02-19

    IPC分类号: G02F1/361 F21V9/00

    摘要: An optical article, for the transmission of electromagnetic radiation. The optical article includes a medium, which exhibits a second-order electric susceptibility greater than 10.sup.-9 electrostatic units. The medium includes polar aligned dipole subunits. Each dipole subunit has a plurality of noncentrosymmetric molecular dipoles and a connector system. Each molecular dipole has an electron donor moiety, an electron acceptor moiety, and a linking moiety. The linking moiety has a pair of covalent bonds to the connector system. Each molecular dipole has a conjugated .pi. bonding system extending from the electron donor moiety along the linking moiety to the electron acceptor moiety to permit oscillation of the molecular dipole between a ground state and an excited state, which states differ in polarity. The connector system joins the linking moieties to complete a solitary ring or a system of fused rings, which retain the molecular dipoles in substantially parallel relative relation.

    摘要翻译: 一种用于传输电磁辐射的光学制品。 光学制品包括介质,其表现出大于10-9静电单位的二次电磁化率。 介质包括极性对准的偶极子单元。 每个偶极子单元具有多个非中心对称分子偶极子和连接器系统。 每个分子偶极子具有电子供体部分,电子受体部分和连接部分。 连接部分与连接器系统具有一对共价键。 每个分子偶极具有从电子供体部分沿着连接部分延伸到电子受体部分的共轭π键合体系,以允许分子偶极子在基态和激发态之间的振荡,其状态极性不同。 连接器系统连接连接部分以完成孤立环或稠环系统,其将分子偶极保持为基本平行的相对关系。

    Optical article containing a linear polymer exhibiting a high level of
second order polymerization susceptibility
    4.
    发明授权
    Optical article containing a linear polymer exhibiting a high level of second order polymerization susceptibility 失效
    含有显示高水平二级聚合敏感性的线性聚合物的光学制品

    公开(公告)号:US4900127A

    公开(公告)日:1990-02-13

    申请号:US241740

    申请日:1988-09-08

    IPC分类号: C08F8/00 G02F1/065 G02F1/361

    CPC分类号: G02F1/065 C08F8/00 G02F1/3613

    摘要: An optical article is disclosed containing, for the transmission of electromagnetic radiation, a medium exhibiting a second order polarization susceptibility greater than 10.sup.-9 electrostatic units comprised of a linear polymer containing as pendant groups polar aligned noncentrosymmetric molecular dipoles having an electron donor moiety linked through a conjugated .pi. bonding system to an electron acceptor moiety to permit oscillation of the molecular dipole between a ground state exhibiting a first dipole moment and an excited state exhibiting a differing dipole moment. The linear polymer contains repeating units derived from vinyl addition polymerization, at least 5 percent of the repeating units incorporate the molecular dipoles as pendant groups, and the molecular dipoles include a sulfonyl electron acceptor moiety.

    摘要翻译: 公开了一种光学制品,其包含用于传输电磁辐射的介质,其显示出大于10-9个静电单元的介质,所述静电单元包含由包含作为侧基极性取向的非中心对称分子偶极子的线性聚合物组成,所述非对称非对称性分子偶极子具有通过 与电子受体部分的共轭π键合系统,以允许在表现出第一偶极矩的基态和表现出不同偶极矩的激发态之间振荡分子偶极子。 线性聚合物含有衍生自乙烯基加成聚合的重复单元,至少5%的重复单元引入作为侧基的分子偶极子,分子偶极子包括磺酰基电子受体部分。

    Preparation of polysulfones
    7.
    发明授权
    Preparation of polysulfones 失效
    聚砜的制备

    公开(公告)号:US5008369A

    公开(公告)日:1991-04-16

    申请号:US430039

    申请日:1989-11-01

    IPC分类号: C08G75/20

    CPC分类号: C08G75/20

    摘要: In a preferred embodiment, poly(4-phenylsulfone) is prepared by self-condensation of sodium 4-fluorophenyl sulfinate. The process is initiated by a small quantity of 4,4'-difluorophenylsulfone. The process is conducted in the presence of a dipolar, aprotic solvent such as dimethylsulfoxide. The reaction is conducted at a mildly elevated temperature, preferably within the range of from about 100.degree. C. to about 200.degree. C.

    摘要翻译: 在优选的实施方案中,通过4-氟苯基亚磺酸钠的自缩合制备聚(4-苯基砜)。 该方法由少量的4,4'-二氟苯基砜引发。 该方法在偶极非质子溶剂如二甲基亚砜存在下进行。 反应在温和升高的温度下进行,优选在约100℃至约200℃的范围内。