新型有机桥基梯形聚乙烯基硅氧烷的合成

通过“逐步偶联聚合方法”设计合成了一种含有反应性侧基的梯形聚有机硅氧烷。此合成方 法采用N,N′二（1,1-二甲基-2-羟乙基）对苯二甲酰胺（M）为模板，将具有三官能团 的有机硅单体联结成梯形模板单元，然后在N—H…O〖FY=,1〗C型氢键作用下水解缩合，得 到一种具有高规整性的梯形聚硅氧烷。通过XRD和²⁹Si-NMR，对该化合物的组成和结 构进行了表征。结果表明，该化合物具有规整的梯形结构。上述含有反应性侧基的梯形聚有 机硅氧烷可以作为潜体进一步制备其它功能性高分子。

Synthesis of a novel organo-bridged ladderlike poly(vinylsiloxane)

A novel ladderlike polysiloxane with a reactive side group was synthesized via s tepwise coupling polymerization. During the reaction, the coupling agent N,N′-di (1,1-dimethylethanol) terephthaloyl amide (abbreviated as M) is believed to act as a template which enables silane molecules to form a ladderlike supramole cular intermediate through amido H bonding interactions, followed by further co ndensation to form amide bridged ladderlike polysiloxanes. The structure of the polymer was characterized by X-ray diffraction and ²⁹Si-NMR. The da ta show that the polymer has an ordered ladderlike molecular structure. The titl e polymer, ladderlike polysiloxane with grafted reactive groups is a very promis ing and potential precursor for the preparation of new functional polymers.