Motional behaviour and interaction between main chain and side chain of mesogenic moiety of liquid crystalline copolymer were studied by positron annihilation lifetime spectroscopy.
用正电子湮没寿命谱研究了手性丙烯酸酯侧链液晶共聚物分子主链与介晶基元侧链的运动行为及相互作用。
The nematic thermotropic liquid crystalline behaviour of ten kinds of PEAs obtained was studied by polarizing microscope, DSC and X-ray diffraction.
用热台偏光显微镜，DSC和X光衍射方法研究了热致液晶的相转变行为，确认了这十种聚酯酰胺均为向列型热致液晶。
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