含有β－二酮结构热致性液晶聚醚酮的合成

Thermotropic Liquid Crystalline Polyetherketone with β diketone Spacer

该文首先合成了新单体１，３－二（４′－羟基苯基）－１，３－丙二酮，然后与不同的１，ｎ－二卤代烷缩合得到了一系列含有β－二酮结构的热致性液晶聚醚酮。

In this paper,we have firstly prepared a new monomer,1,3 bis(4' hydroxylbenzyl) propane 1,3 diketone from ethyl p methoxylbenxyl ethyl ketone in high yield and high purity.And then,being empolyed it,three themotropic liquid crystalline polytherketone with β diketone spacer had been gotten by polycondensation with 1, n dihalogenoalkane( n =3,4,5) and characterized by elemental analysis,IR,DSC and polarized hot stage microscopy.