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- Keywords main-chain liquid crystalline polymer;nematic mesophase;disclination; 主链型高分子液晶;向列相;向错;
- Keywords Disclination;Band texture;Nematic mesophase;Thermotropic aromatic copolyester; 向错;条带织构;高分子液晶态;热致性聚芳酯;
- Keywords Polymeric liquid crystalline state;Nematic mesophase;Disclination;Lamellar decoration;Banded texture decoration;Surface crack decoration; 高分子液晶态;向列相;向错结构;片晶装饰;条带织构装饰;表面裂纹装饰;
- nematic mesophase 向列型中间相
- The results showed that nematic liquid crystalline mesophase was obtained when the temperature decreased, and was confirmed by the second endotherm corresponding clearing temperature of DSC curve as well as SAXD, WAXD curves. 聚合物在偏光显微镜下观察到降温过程中能够形成向列型的介晶态,并在DSC曲线上出现清亮点转变峰,另外由X光衍射图谱得知聚合物不存在长程有序结构,仅存在分子的近程有序,属典型的向列型热致性液晶聚酰胺。
- The precursor with 100% mesophase is more suitable for foaming. 100%25中间相含量的前驱体相对更适合发泡;
- POM revealed their obvious nematic schlieren and streak textures. 结果表明这类化合物具有热致液晶性,呈典型的向列项纹影织构。
- The precursor with 100%mesophase is more suitable for foaming. 100%25中间相含量的前驱体相对更适合发泡;
- Nematic Liquid Crystal Binary Gratings with High Spatial Frquency[J]. 引用该论文 史红军;苗?岑;史永基.
- A pitch mesophase can be prepared from petroleum pitch andcoal tar pitch. 从石油沥青和煤沥青中制取沥青中间相物质。
- Mesophase pitch was melt spun into hollow,ribbon shaped and Y shaped fibers. 利用中间相沥青熔融纺丝法,制得中空、条形、Y形等异形纤维,介绍了异形沥青纤维的纺丝特点。
- Generally, the shape of the biaxial nematic molecules is between rod-like and disk-like. 一般地,双轴性液晶分子的形状介于棒状和盘状之间。
- Experimental observation of disclinations of main-chain nematic polymers is re-viewed. 综述了主链型高分子液晶向列相向错在实验观察方面的进展。
- High pressure effects on the structure and mesophase behaviour of supramolecular lipid aggregates and model membrane. 高压对超分子脂质聚集体和模型膜结构、及间期行为的影响。
- In this thesis, we successfully fabricate the flexible alignment layer-less twisted nematic liquid crystal cell. 在这个研究中,我们成功制作出无配向层的可挠式扭转向列型液晶元件。
- During petroleum thermal conversion, asphaltene yields coke via the second liquid phase and the carbonaceous mesophase. 在石油热转化过程中,沥青质经由第二液相和碳质中间相转化为焦。
- Flexoelectric effect on electro-optical characteristics of a nematic liquid crystal cell is investigated. 摘要研究挠曲电效应对向列相液晶盒电光效应的影响。
- A better separation process is needed to improve the reproducibility and quality of the mesophase pitch precursor. 因此,需要有一种较好的分离工艺,以便能够保证沥青在分离过程中,分离后的沥青组分再现性和沥青中间前驱体的质量。
- The cell theory is used to study nematic liquid crystals formed by biaxial molecules. 通过格胞理论研究双轴分子构成的向列型液晶。
- Mesophase microbeads were prepared from coal tar pitch by thermal condensation in atmospheric pressure. 以煤焦油沥青为原料采用常压热缩聚工艺制备中间相沥青微球。