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利用偏光显微镜研究了乙基纤维素与聚己内酯共混物在二氯乙酸中的溶致性液晶形态。结果表明聚己内酯的分子量对共混体系的溶致性液晶织构有明显的影响。差示扫描量热法测试结果显示含不同分子量聚己内酯的共混物 ,其混溶性及两组分间的相互作用无十分明显的差异。聚己内酯分子量对共混体系溶致性液晶的形态和热稳定性的影响 ,可认为是由于分子量对体系的粘度贡献引起的。
The lyotropic liquid crystal morphology of blends of ethylcellulose and polycaprolactone in dichloroacetic acid was studied by polarized light microscope. The results show that the molecular weight of polycaprolactone blend system of lyotropic liquid crystal texture has a significant impact. The results of differential scanning calorimetry showed that the blends with different molecular weight polycaprolactone had no obvious difference in their miscibility and the interaction between the two components. The influence of the molecular weight of polycaprolactone on the morphology and thermal stability of the blends lyotropic liquid crystals can be attributed to the molecular weight contribution to the viscosity of the system.