Star polymers having multiple arms emanating from a calixarene core,
initiators therefor, and method for the synthesis thereof
    1.
    发明授权
    Star polymers having multiple arms emanating from a calixarene core, initiators therefor, and method for the synthesis thereof 失效
    具有从杯芳烃核心发出的多臂的星形聚合物,其引发剂及其合成方法

    公开(公告)号:US5804664A

    公开(公告)日:1998-09-08

    申请号:US862581

    申请日:1997-05-23

    CPC分类号: C08F297/06 C08F10/10

    摘要: The synthesis and characterization of novel linear polymers and multi-arm star polymers comprising polyisobutylene arms connected to a well-defined calixarene core are described. The synthesis has been achieved using the "core first" method wherein multifunctional calix�n!arene (where n=4 to 16) derivatives or their monofunctional analogues are used as initiators which, in conjunction with certain Freidel-Crafts acids as co-initiators, induce the living polymerization of isobutylene or a similar carbocationic polymerizable monomer to form star polymers or block copolymers. Novel initiators suitable for inducing the polymerization are also described.

    摘要翻译: 描述了包含连接到明确定义的杯芳烃核心的聚异丁烯臂的新型线性聚合物和多臂星形聚合物的合成和表征。 使用其中多功能杯[n]芳烃(其中n = 4至16)衍生物或其单官能类似物用作引发剂的“核心优先”方法已经实现了合成,其结合某些Freidel-Crafts酸作为共引发剂 诱导异丁烯或类似的碳阳离子聚合单体的活性聚合形成星形聚合物或嵌段共聚物。 还描述了适合于引发聚合的新型引发剂。

    Multi-arm cationic star-polymers
    2.
    发明授权
    Multi-arm cationic star-polymers 失效
    多臂阳离子星形聚合物

    公开(公告)号:US5395885A

    公开(公告)日:1995-03-07

    申请号:US169434

    申请日:1993-12-17

    CPC分类号: C08F297/00

    摘要: The first synthesis of a multi-arm radial-star polyisobutylene is described. The synthesis occurred by the addition of excess divinylbenzene (DVB) linking reagent to a living polyisobutylene (PIB.sup..sym.), charge, i.e., by the "arm first" method under specific conditions. The radial structure of the star-PIB was proven by determining the molecular weight of a sample by light scattering, then selectively destroying the aromatic polydivinylbenzene core, and finally determining the molecular weight of the surviving aliphatic PIB arms. The synthesis strategy, kinetic observations during synthesis, and procedures leading to a representative star-PIB are described. This product whose M.sub.w =1,134,400 g/mole with M.sub.w /M.sub.n =2.83, contained .about.90.3 mole % (.about.78 wt. %) PIB arms and .about.9.7 mole % (.about.22 wt. %) aromatic core; thus the number of PIB arms emanating from the core was N.sub.n, arm =56 or N.sub.w, arm (weight average number of arms)=110.

    摘要翻译: 描述了多臂径向星形聚异丁烯的第一次合成。 通过在特定条件下通过加入过量的二乙烯基苯(DVB)连接试剂与活性聚异丁烯(PIB(+))进行合成,即通过“臂第一”方法进行加料。 通过用光散射确定样品的分子量,然后选择性地破坏芳族聚二乙烯基苯核心,最后确定存活的脂族PIB臂的分子量,证明了星形PIB的径向结构。 描述了合成策略,合成过程中的动力学观察以及导致代表性的星形-PIB的程序。 该产品的&upbar&Mw = 1,134,400克/摩尔<上升&Mw /&upbar&Mn = 2.83,含有差异90.3摩尔%(差异78重量%)PIB臂和差异9.7摩尔%(差异22重量%)芳香核; 因此从核心发出的PIB武器的数量是&upbar&Nn,arm = 56或&upbar&Nw,手臂(重量平均臂数)= 110。

    Biocompatible dendrimers
    3.
    发明授权
    Biocompatible dendrimers 失效
    生物相容性树枝状大分子

    公开(公告)号:US07078461B2

    公开(公告)日:2006-07-18

    申请号:US10431956

    申请日:2003-05-08

    IPC分类号: C08L67/00 C08G63/48

    摘要: The present invention relates to compositions and methods involving biocompatible dendrimers. In particular, the present invention provides dendrimeric copolymers with poly(propyleneimine) (POPAM) interiors and poly(amidoamine) (PAMAM) exteriors for use in transfection and imaging applications.

    摘要翻译: 本发明涉及涉及生物相容性树枝状大分子的组合物和方法。 特别地,本发明提供了用于转染和成像应用的聚(丙烯亚胺)(POPAM)内部和聚(酰氨基胺)(PAMAM)外观的树枝状聚合物。

    Star polymers having multiple polyisobutylene arms emanating from a
calixarene core, initiators therefor, and method for the synthesis
thereof
    4.
    发明授权
    Star polymers having multiple polyisobutylene arms emanating from a calixarene core, initiators therefor, and method for the synthesis thereof 失效
    具有从杯芳烃核发出的多个聚异丁烯臂的星形聚合物,其引发剂及其合成方法

    公开(公告)号:US5844056A

    公开(公告)日:1998-12-01

    申请号:US693433

    申请日:1996-08-07

    摘要: The synthesis and characterization of novel linear polymers and multi-arm star polymers comprising polyisobutylene arms connected to a well-defined calixarene core are described. The polymers are directly telechelic. They synthesis has been achieved using the "core first" method wherein multifunctional calix�n!arene (where n=4 to 16) derivatives or their monofunctional analogues are used as initiators which, in conjunction with certain Freidel-Crafts acids as co-initiators, induce the living polymerization of isobutylene or a similar carbocationic polymerizable monomer. Novel initiators suitable for inducing the polymerization are also described.

    摘要翻译: 描述了包含连接到明确定义的杯芳烃核心的聚异丁烯臂的新型线性聚合物和多臂星形聚合物的合成和表征。 聚合物是直接遥爪的。 使用其中多功能杯[n]芳烃(其中n = 4至16)衍生物或其单官能类似物用作引发剂的“核心优先”方法已经实现了它们的合成,这些引发剂与某些Freidel-Crafts酸作为共引发剂 诱导异丁烯或类似的碳阳离子聚合性单体的活性聚合。 还描述了适合于引发聚合的新型引发剂。