申请人:——
公开号:US20030232932A1
公开(公告)日:2003-12-18
There are provided novel chemical compounds and their uses in the preparation of polymers and oligomers, and the preparation of such compounds. In certain embodiments there are provided dendritic polymers and oligomers, of a type having at least four polymeric or oligomeric organic chains emanating from a single chemical core, each of the chains being of substantially equal length and substantially the same chemical composition. Such compounds may be referred to as dendrimers. Also provided are novel chemical entities useful as core entities in the preparation of dentrimers. Dendrimers can recognize a core substructure to which the polymeric/oligomeric chains (“dendrons”) are covalenty attached and from which they extend with systematic branching radially outward in a three dimensional fashion, to approximately the same extent to each other. Together, core and dendrons constitute macromolecules possessing a high degree of internal structural replication attributable to the branches.
提供了新颖的化合物以及它们在聚合物和寡聚物制备中的用途,以及这些化合物的制备方法。在某些实施例中,提供了树枝状聚合物和寡聚物,这种类型的聚合物或寡聚物具有至少四条聚合物或寡聚物有机链从单一化学核心中发出,每条链的长度基本相等且化学组成基本相同。这种化合物可以称为树状聚合物。还提供了作为核心实体在制备树状聚合物中有用的新颖化学实体。树状聚合物可以识别一个核心亚结构,聚合物/寡聚物链(“树状体”)以共价键连接并沿着径向向外以三维方式系统地分支延伸,使它们彼此的延伸程度大致相同。核心和树状体一起构成具有高度内部结构复制度的大分子,这种复制度归因于分支。