Anionic Synthesis of Primary Amine Functionalized Polystyrenes via Hydrosilation of Allylamines with Silyl Hydride Functionalized Polystyrenes
Anionic Synthesis of Primary Amine Functionalized Polystyrenes via Hydrosilation of Allylamines with Silyl Hydride Functionalized Polystyrenes
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DOI：
10.1021/ma0513261
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发表时间：
2005-08
期刊：
影响因子：
5.5
通讯作者：
R. Quirk;H. Kim;M. J. Polce;C. Wesdemiotis
中科院分区：
文献类型：
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作者：
R. Quirk;H. Kim;M. J. Polce;C. Wesdemiotis
介绍了一种通用的负离子ω-链端功能化方法，并以ω-伯胺功能化聚苯乙烯的合成为例进行了说明。首先，在室温下，用二甲基氯硅烷在烃溶液中对定义明确的聚苯乙烯基锂（Mn = 2200和14 100 g/mol）进行了ω-硅氢化物的定量官能化反应。在第二步中，通过硅氢化胺化，使用Karstedt's Pt(0)催化剂，将硅氢化物功能化的聚苯乙烯定量地加入到3-[N，N-二（三甲基硅胺）]-1-丙烯（一种保护胺）中。该方法的主要优点之一是不需要对许多官能团使用保护基团，如使用Karstedt's氢硅化催化剂，用烯丙胺定量地进行了硅氢化物功能化聚（苯乙烯）锂的伯胺功能化。对硅氢化物和胺官能团聚苯乙烯进行了SEC、FTIR、…
A general anionic ω-chain-end functionalization methodology is described and illustrated by the synthesis of ω-primary amine functionalized polystyrenes. First, the quantitative ω-silyl hydride functionalization of well-defined poly(styryl)lithium (Mn = 2200 and 14 100 g/mol) was effected with dimethylchlorosilane in hydrocarbon solution at room temperature. In the second step, involving amination by hydrosilation, the silyl hydride functionalized polystyrene was added quantitatively to 3-[N,N-bis(trimethylsilylamino]-1-propene, a protected amine, using Karstedt's Pt(0) hydrosilation catalyst in benzene. One of the principal advantages of this method is the fact that it is not necessary to use protecting groups for many functional groups, as illustrated by the quantitative primary amine functionalization of ω-silyl hydride functionalized poly(styryl)lithium with allylamine using the Karstedt's hydrosilation catalyst. The silyl hydride and amine functionalized polystyrenes were characterized by SEC, FTIR, ...