Papers by Keyword: Polarizing Microscope

Abstract: In order to obtain an important azobenzene liquid crystal with high birefrience, click chemistry reaction was used to preparation the compound. In this paper, the novle azobenzene liquid crystal was synthesized by (4-Ethynyl-phenyl)-(4-trifluoromethyl-phenyl)-diazene and C₈H₁₇Br as raw materials. In addition, the synthesized compound was characterized by FT-IR and ¹H-NMR to confirm the consistent structure, and the liquid crystal phase behaviors of phase sequences were investigated by polarizingmicroscope (POM).

Abstract: The crystallization and rheological properties of PET were studied by using capillary remoter and plate remoter in the paper. The results showed that the addition of PEN could improve the rheological property of PEN/PET blends and the addition of PC could improve the toughness of PEN/PET blends. Besides, Nucleating agent could accelerate the crystallization rate and form crystal particles with small dense in order to improve the properties of impact resistance, tensile strength and transparency of products.