含有聚醚醯亞胺之樹枝狀高分子的合成及研究

Abstract

本論文討論以收斂法合成聚醚醯亞胺之樹枝狀高分子，在合成過程中，主要利用（1） NITRO-DISPLACEMENT反應和（2）形成imide rings的cyclization 反應。我們合成出三種結構相似而末端官能基不同的樹枝狀高分子。樹枝狀聚合物含有大量的末端官能基，而這一類高分子的物理性質都與末端官能基的本質有很大的關係。故除了以NMR和MALDI-TOF Mass Spectroscopy來鑑定所合成的高分子外，並由 DSC、TGA和溶解度測試來研究高分子的物理性質。

New dendritic poly(etherimide)s were synthesized by the convergent approach through an aromatic nucleophilic displacement of activated nitro group to form the ether linkages and a cyclization reaction to yield the imide rings. The structure of these dendritic poly(etherimide)s are similar and contain different chain end function groups, and were characterized by NMR and MALDI-TOF Mass Spectroscopies. We also used DSC、TGA and the test of solubility to study the physical properties of these polymers. The physical properties of the polymers depend on the nature of the chain end groups.