链中功能性高枝化聚合物的合成方法

Methodology of Synthesis of Dendrigraft and In-Chain Functionalized Polymers

功能化已成为实现高分子材料高性能化的重要途径,高分子材料的功能化已从端基官能化向链中官能化发展。本文评述了基于活性阴离子聚合方法高枝化聚合物及链中功能性聚合物的合成方法。以实现链中功能性聚合物"定性、定位、定量"为目标,通过硅氧键(DPE-SiO)、硅氢键(DPE-SiH)与功能性试剂之间的转换反应将目标官能团键入到聚合物链中。系统评述了复杂拓扑结构链中功能性高枝化聚合物的合成方法以及结构与性能之间的构效关系。

Functionalization has become an important way to obtain high performance polymer materials.Polymer functionalization has been developed from chain-end functionalization to in-chain functionalization.By living anionic polymerization the methodology of precise synthesis of dendrigraft polymers was studied.In-chain functionalized polymers with functional groups of definite function,accurate quantity and precise position were synthesized by the living anionic copolymerization of general monomers such as butadiene/isoprene/styrene and 1,1-diphenylethylene(DPE)derivatives with functional groups such as DPE-OSi and DPE-SiH.Then many kinds of functional groups were able to get by the transition reaction from DPE-OSi and DPE-SiH to other functional groups.The precise synthesis methodology of in-chain functionalized polymers with the complex topology structure was studied and the relationship between the structure and property of above polymers was understood.