Chemistry of Discotic Liquid Crystals: From Monomers to - download pdf or read online

By Sandeep Kumar

ISBN-10: 1439811431

ISBN-13: 9781439811436

The self-contained homes of discotic liquid crystals (DLCs) render them strong useful fabrics for plenty of semiconducting equipment functions and types for power and cost migration in self-organized dynamic practical delicate fabrics. The earlier 3 many years have obvious great curiosity during this sector, fueled essentially via the potential of making a new new release of natural semiconductors and extensive viewing monitors utilizing DLCs. whereas a couple of books on classical calamitic liquid crystals can be found, there are, as but, no books which are devoted completely to the fundamental layout ideas, synthesis, and actual homes of DLCs. the 1st reference e-book to hide DLCs, Chemistry of Discotic Liquid Crystals: From Monomers to Polymers highlights the chemistry and thermal habit of DLCs. Divided into six chapters, each one with a normal description, history, and context for the strategies concerned, the publication starts with a simple creation to liquid crystals, describing molecular self-assembly and numerous sorts of liquid crystals. It outlines their category, covers their heritage and common purposes, and makes a speciality of DLCs and their discovery, constitution, characterization, and alignment. The publication is going directly to research the chemistry and actual homes of varied monomeric DLCs, together with 25 sections describing the synthesis and mesomorphic houses of monomeric DLCs shaped through assorted cores. the majority of the e-book covers the chemistry and mesomorphism of discotic dimers, oligomers, and polymers and concludes with a glance at a few appropriate homes of DLCs. A entire and up to date source, this publication is designed to be available and of worth not only for college kids and researchers but additionally to the administrators and valuable investigators operating during this box, offering the root and gasoline to increase this fast-growing technological box.

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Additional info for Chemistry of Discotic Liquid Crystals: From Monomers to Polymers (Liquid Crystals Book Series)

Sample text

Such measurements of disk-shaped molecules usually indicate one of the two forms depending on the molecular structure. Molecules with relatively strong core–water interactions and weak core–core interactions, such as benzene, phthalocyanine, generally show a face-on arrangement with the cores cofacial to the water surface and the aliphatic chains extending away from the surface [198]. In contrast, molecules with stronger core–core attractions such as truxene, triphenylene show an edge-on arrangement.

Charge carrier mobilities in the discotic liquid crystalline system are still slower than those in organic single crystals. However, it is very difficult to prepare single organic crystals large enough to be used for electronic devices. DLCs are relatively easily processable and possess the property of self-healing of defects owing to their dynamic nature. Therefore, in this respect, DLCs are superior for low-cost solution and melt processing on plastic substrates for electronic and optoelectronic device fabrication.

Very little work has been devoted in designing alignment layers for discotic columnar phase and very few systematic investigations on their surface alignment have been published. Presumably, the perceived lack of application for discotics is one of the reasons why the 30 Chemistry of Discotic Liquid Crystals: From Monomers to Polymers alignment control technology of discotics was lagging behind the calamitic LCs. DLCs can align spontaneously but the alignment is neither uniform nor monodomain in nature.

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Chemistry of Discotic Liquid Crystals: From Monomers to Polymers (Liquid Crystals Book Series) by Sandeep Kumar

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