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用ＩＲ、ＤＳＣ、ＷＡＸＤ、正交偏光显微镜、ＳＥＭ、ＴＥＭ等手段，表征了所合成的液晶／烃橡胶／硅橡胶三元共混复合膜的织态结构及液晶态转变．结果发现，液晶ＰＥＥＣＢ—４．０５由于与ＳＢＲ和ＰＤＭＳ共混，Ｔｋ－ｓ转变温度下降了３７．５℃，体系存在不完全的相分离．液晶ＰＥＥＣＢ—４．０５在体系中形成液晶富集区（ＬＣ—ｒｉｃｈｄｏｍａｉｎ），大小约０２—２．２μｍ不等．在压力的作用下，连续的液晶富集区形成宽约７．０μｍ并垂直于膜的平面的通道．这些结果是第Ⅰ报中这类富氧膜透气率产生突变的根本原因．
The texture structure and liquid crystal transition of the prepared liquid crystal / hydrocarbon rubber / silicone rubber ternary blend composite film were characterized by IR, DSC, WAXD, Orthogonal polarization microscope, SEM and TEM. The results show that the liquid crystal PEECB-4.05 blends with SBR and PDMS, the Tk-s transition temperature decreased by 37.5 ℃, the system exists incomplete phase separation. Liquid crystal PEECB-4.05 forms a liquid-crystal rich region (LC-rich domain) in the system, with sizes of about 02-2.2 μm. Under pressure, the continuous liquid-crystal-rich zone forms a channel with a width of about 7.0 μm and perpendicular to the plane of the membrane. These results are the root cause of the abrupt changes in the permeability of such oxygen-enriched membranes in Part I.