摘要
本文使用广角X射衍射线WAXD结合多峰多离程序研究向列型热致液晶PAB／PET的非晶态结构。结果表明：随刚性分子PAB含量增加分子链间平均距离d1增大而非晶有序畴尺rα的结晶度Xc减少。当PAB含量≥25％，X射线谱在2θ=10°～35°范围呈现为非晶弥散峰，此时PAB／PET为向列型热致液晶。
WAXD and multipeak resolution procedure were applied to study the PAB (Paminbeozioc acid) PET/(polyethylene trephthalate) nematic liquid crystal. The experimental results show that with the increasing of content of PAB, the distance of macromolecular chain increases but the prefect order size of amorphous phase and crystillinity decrease.When the content of PAB is greater than 25%, the PAB/PET is nematic thermotropic liquid crystal and the diagram of WAXD widely spread in range of 2θ= 10°～35°
