Synthesis and Characterization of Bent Shaped Liquid Crystals Having Schiff's Base Mesogenic Core
Author: Kah Yee Phoon
Publisher:
Published: 2009
Total Pages: 88
ISBN-13:
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Author: Kah Yee Phoon
Publisher:
Published: 2009
Total Pages: 88
ISBN-13:
DOWNLOAD EBOOKAuthor: Soon Wuan Gan
Publisher:
Published: 2009
Total Pages: 120
ISBN-13:
DOWNLOAD EBOOKAuthor: Kala a/p Shanku Pillay
Publisher:
Published: 2006
Total Pages: 100
ISBN-13:
DOWNLOAD EBOOKThe field of liquid crystal is relatively new area of chemistry, and therefore generates a large frontier of research. The ability of being able to produce high resolution display screens for use in televisions or laptop computers with a very low power consumption, has revolutionised the technological market for this product. As a result of the success of the knowledge already known about liquid crystals and their properties, and their as yet unexplored potential, it is not suprising that there is an extremely large amount of research into the area. In relation to this, in this project, a five ring bent-shaped liquid crystal, which is relatively new compound in liquid crystalline phase, was synthesized using several organic synthesis methods, such as, Diazonium coupling reaction, Williamson ether synthesis, hydrolysis and reaction with resorcinol. The compounds synthesized were characterized through FTIR analysis, melting point, and its physical apperances. Other than that, the percent yield for each compound also have been calculated. The compound synthesized in first step, ethyl4-4-(hydroxyphenylazo)benzoate was a red color solid with melting point at 235 C and the percent yield was 52.07%. In second step 3.542 grams of Ethyl-4-(4-hexadecanoxyphenylazo)benzoate which orange in color with melting point of 135 C was obtained. The percent yield from the reaction was 42.11%. The third compound synthesized was yellow color solid with melting point of 280-290 C and the final compound was 1,3-Phenelyne bis[4-(4-hexadecanoxyphenylazo)benzoate], a pale yellow color solid with melting point at range of 130-135 C was obtained.
Author: Hideo Takezoe
Publisher: CRC Press
Published: 2017-07-20
Total Pages: 288
ISBN-13: 148224764X
DOWNLOAD EBOOKBent-Shaped Liquid Crystals: Structures and Physical Properties provides insight into the latest developments in the research on liquid crystals formed by bent-shaped mesogens. After a historical introduction, the expert authors discuss different kinds of mesophase structures formed by bent-shaped molecules. This book devotes the majority of its pages to physical properties such as polar switching, optics and non-linear optics, and behavior in restricted geometries. However, as chemistry is often highly relevant to the emergence of new phases, particularly with reflection symmetry breaking, it also involves a broad spectrum of interesting chemistry viewpoints.
Author: Soon Gim Seong
Publisher:
Published: 2008
Total Pages: 86
ISBN-13:
DOWNLOAD EBOOKAuthor: Indhumathi Sivanesan
Publisher:
Published: 2008
Total Pages: 91
ISBN-13:
DOWNLOAD EBOOKAuthor: Maria Gabriela Tamba
Publisher:
Published: 2014
Total Pages: 0
ISBN-13:
DOWNLOAD EBOOKThermotropic liquid crystals; bent-core mesogens; calamitic mesogens; oligomers; chirality; anti(ferroelectricity); polar mesophases; dark-conglomerate-phases; electro-optic switching; X-ray scattering
Author: Tommaso Bellini
Publisher: Springer Science & Business Media
Published: 2012-01-21
Total Pages: 419
ISBN-13: 3642275907
DOWNLOAD EBOOKFluorinated Liquid Crystals: Design of Soft Nanostructures and Increased Complexity of Self-Assembly by Perfluorinated Segments, by Carsten Tschierske Liquid Crystalline Crown Ethers, by Martin Kaller and Sabine Laschat Star-Shaped Mesogens – Hekates: The Most Basic Star Structure with Three Branches, by Matthias Lehmann DNA-Based Soft Phases, by Tommaso Bellini, Roberto Cerbino and Giuliano Zanchetta Polar and Apolar Columnar Phases Made of Bent-Core Mesogens, by N. Vaupotič, D. Pociecha and E. Gorecka Spontaneous Achiral Symmetry Breaking in Liquid Crystalline Phases, by H. Takezoe Nanoparticles in Liquid Crystals and Liquid Crystalline Nanoparticles, by Oana Stamatoiu, Javad Mirzaei, Xiang Feng and Torsten Hegmann Stimuli-Responsive Photoluminescent Liquid Crystals, by Shogo Yamane, Kana Tanabe, Yoshimitsu Sagara and Takashi Kato
Author: Mohd Fadzrul Hasrie
Publisher:
Published: 2010
Total Pages:
ISBN-13:
DOWNLOAD EBOOKAuthor: Soon Pin Law
Publisher:
Published: 2010
Total Pages: 60
ISBN-13:
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