Multifunctional Initiator with Platinum-Acetylide Dendritic Core for Living Polymerization of Isocyanides
Multifunctional Initiator with Platinum-Acetylide Dendritic Core for Living Polymerization of Isocyanides
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用于异氰化物活性聚合的具有铂乙炔树枝状核的多功能引发剂
DOI：
10.1007/s10904-008-9237-5
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
S. Takahashi
中科院分区：
文献类型：
--
作者：
K. Onitsuka;A. Shimazu;F. Takei;S. Takahashi
通过对Pt-乙炔树枝状大分子进行外围修饰，开发了一种新型多功能引发剂。采用发散法将Pd-Pt μ-乙炔基单元引入到第一代树枝状大分子中。树枝状引发剂适用于芳基异腈的活性聚合，以定量产率生产具有窄多分散指数的高分子量聚合物。所得聚合物的~（31）P NMR谱表明树枝状分子中所有的Pd-Pt μ-乙炔基单元实际上都起着引发剂的作用。
A novel multifunctional initiator has been developed by peripheral modification of a Pt-acetylide dendrimer. Pd–Pt μ-ethynediyl units were introduced to the first-generation dendrimer by a divergent method. The dendritic initiator was applicable to the living polymerization of aryl isocyanides, producing high molecular weight polymers with a narrow polydispersity index in quantitative yields. The31P NMR spectrum of the resulting polymer suggested that all Pd–Pt μ-ethynediyl units in the dendritic molecule actually functioned as an initiator.