Nanocomposites of dendritic polymers
    2.
    发明授权
    Nanocomposites of dendritic polymers 有权
    树枝状聚合物的纳米复合材料

    公开(公告)号:US07786188B2

    公开(公告)日:2010-08-31

    申请号:US11384910

    申请日:2006-03-21

    摘要: In the present invention, an inorganic reactant is, or reactants are, localized with respect to a dendritic polymer by physical constraint within or by a non-covalent conjugation to the dendritic polymer. The localized inorganic reactant or reactants is/are subsequently transformed to form a reaction product which is immobilized with respect to the dendritic polymer. This immobilization occurs on a nanoscopic scale as a consequence of the combined effects of structural, chemical and physical changes without having covalent bonds between the product(s) and the dendritic container and results in new compositions of matter called dendritic nanocomposites. The resulting nanocomposite material can be used to produce revolutionary products such as water soluble elemental metals, with specific applications including magnetic resonance imaging, catalytic, magnetic, optical, photolytic and electroactive applications.

    摘要翻译: 在本发明中,无机反应物是或反应物相对于树枝状聚合物通过物理约束在非共价共轭结合到树枝状聚合物内或通过非共价共轭结合到树枝状聚合物。 随后将局部无机反应物或反应物转化成相对于树枝状聚合物固定的反应产物。 由于结构,化学和物理变化的组合效应,在产品和树枝状容器之间没有共价键并导致称为树枝状纳米复合材料的新组合物,这种固定在纳米尺度上发生。 所得的纳米复合材料可用于生产诸如水溶性元素金属的革命性产品,其具体应用包括磁共振成像,催化,磁性,光学,光解和电活性应用。

    Initiation via haloboration in living cationic polymerization
    3.
    发明授权
    Initiation via haloboration in living cationic polymerization 失效
    在活性阳离子聚合中通过卤化引发

    公开(公告)号:US5665837A

    公开(公告)日:1997-09-09

    申请号:US173493

    申请日:1993-12-23

    摘要: A composition of the invention includes a polymer component which consists essentially of an asymmetric telechelic polymer having a boron-containing head group. These asymmetric telechelic polymers can also have halogen tail groups. The end group functionalities make these polymers extremely useful because, for example, the functionalities facilitate subsequent elaboration of the polymer. A method of forming the composition includes forming a reaction mixture which consists essentially of an olefin, a Lewis acid, and a base which will react with essentially all protic impurities in the reaction mixture, thereby preventing protic initiation during polymerization of the olefin. The reaction mixture is exposed to conditions which cause the olefin to react to form an initiator in situ which can cause polymerization of additional olefin to form a polymerized olefin consisting essentially of a telechelic polymer. In another embodiment, the initiator has the structure BX.sub.2 --[CH.sub.2 --C(CH.sub.3).sub.2 ].sub.n A, where "n" is at least one, "X" is a halogen, and "A" is a leaving group.

    摘要翻译: 本发明的组合物包括基本上由具有含硼头基的不对称遥爪聚合物组成的聚合物组分。 这些不对称遥爪聚合物也可以具有卤素基团。 端基官能团使得这些聚合物非常有用,因为例如,这些官能团促进了聚合物的后续制备。 形成组合物的方法包括形成基本上由烯烃,路易斯酸和碱反应的反应混合物,其将与反应混合物中的基本上所有的质子杂质反应,从而防止烯烃聚合过程中的质子起始。 将反应混合物暴露于使烯烃反应以原位形成引发剂的条件下,其可引起另外的烯烃的聚合以形成基本上由遥爪聚合物组成的聚合烯烃。 在另一个实施方案中,引发剂具有结构BX2- [CH2-C(CH3)2] nA,其中“n”为至少一个,“X”为卤素,“A”为离去基团。

    Nanocomposites of dendritic polymers

    公开(公告)号:US06995234B2

    公开(公告)日:2006-02-07

    申请号:US10682646

    申请日:2003-10-09

    IPC分类号: C08K3/00 C08J9/00

    摘要: In the present invention, an inorganic reactant is, or reactants are, localized with respect to a dendritic polymer by physical constraint within or by a non-covalent conjugation to the dendritic polymer. The localized inorganic reactant or reactants is/are subsequently transformed to form a reaction product which is immobilized with respect to the dendritic polymer. This immobilization occurs on a nanoscopic scale as a consequence of the combined effects of structural, chemical and physical changes without having covalent bonds between the product(s) and the dendritic container and results in new compositions of matter called dendritic nanocomposites. The resulting nanocomposite material can be used to produce revolutionary products such as water soluble elemental metals, with specific applications including magnetic resonance imaging, catalytic, magnetic, optical, photolytic and electroactive applications.

    Method and articles for transfection of genetic material
    5.
    发明授权
    Method and articles for transfection of genetic material 失效
    用于转染遗传物质的方法和文章

    公开(公告)号:US06475994B2

    公开(公告)日:2002-11-05

    申请号:US09219907

    申请日:1998-12-23

    IPC分类号: A61K3170

    摘要: A gene transfection particle includes a polymer, a support particle conjugated with the dendritic polymer, and genetic material conjugated with the dendritic polymer. The gene transfection particles are highly efficient and are capable of delivering higher quantities of genetic materials to cells, with reduced cell damage. A gene transfection method involves bombarding cells with conjugates of polymers and genetic material, with or without a support particle.

    摘要翻译: 基因转染颗粒包括聚合物,与树枝状聚合物共轭的载体颗粒和与树枝状聚合物共轭的遗传物质。 基因转染颗粒是高效的,并且能够向细胞递送更多量的遗传物质,具有降低的细胞损伤。 基因转染方法包括用聚合物和遗传物质的共轭物轰击细胞,具有或不具有支持物质。

    Nanocomposites of dendritic polymers

    公开(公告)号:US20060160929A1

    公开(公告)日:2006-07-20

    申请号:US11384910

    申请日:2006-03-21

    IPC分类号: C08J9/32

    摘要: In the present invention, an inorganic reactant is, or reactants are, localized with respect to a dendritic polymer by physical constraint within or by a non-covalent conjugation to the dendritic polymer. The localized inorganic reactant or reactants is/are subsequently transformed to form a reaction product which is immobilized with respect to the dendritic polymer. This immobilization occurs on a nanoscopic scale as a consequence of the combined effects of structural, chemical and physical changes without having covalent bonds between the product(s) and the dendritic container and results in new compositions of matter called dendritic nanocomposites. The resulting nanocomposite material can be used to produce revolutionary products such as water soluble elemental metals, with specific applications including magnetic resonance imaging, catalytic, magnetic, optical, photolytic and electroactive applications.

    Nanocomposites of dendritic polymers

    公开(公告)号:US06664315B2

    公开(公告)日:2003-12-16

    申请号:US09780973

    申请日:2001-02-10

    IPC分类号: C08J300

    摘要: In the present invention, an inorganic reactant is, or reactants are, localized with respect to a dendritic polymer by physical constraint within or by a non-covalent conjugation to the dendritic polymer. The localized inorganic reactant or reactants is/are subsequently transformed to form a reaction product which is immobilized with respect to the dendritic polymer. This immobilization occurs on a nanoscopic scale as a consequence of the combined effects of structural, chemical and physical changes without having covalent bonds between the product(s) and the dendritic container and results in new compositions of matter called dendritic nanocomposites. The resulting nanocomposite material can be used to produce revolutionary products such as water soluble elemental metals, with specific applications including magnetic resonance imaging, catalytic, magnetic, optical, photolytic and electroactive applications.