Polymer liquid crystaliner

The LC polymers with intra-chain mesogenes are generally characterized by exceptional mechanical properties, forming the liquid crystal polymer (TCP) class employed in many applications. For example, if the mesogenes are connected by a short space, a highly-rigid material is obtained, which is thermally decomposed before melting, namely prior to the manifestation of the liquid crystaline properties. 

The structures of extra-chain liquid crystalline polymers present applicative interest today for other reasons than those of intra-chain LCP. Coupling of the mesogene with basic chain caused a classical liquid crystal behavior. On the other hand, these structures exhibit characteristics of processability and a mechanical behavior similar with that of polymers, having the same sensitivity to various external sohcitations (electric and/or magnetic field) as simple mesogenes, which recommends the utilization of liquid crystaline polymers with extra-chain mesophase for electro-optic applications [29-32]. 

Other examples of functional organogel systems include for instance mesogenic derivatives of cyclohexyl bis-amide 23 which form novel liquid crystaline materials with nematic liquids [66], and the tetraoctadecylammonium bromide (like 3) and the metal-containing gluconamides 12 which were able to gelate monomers as styrene and methacrylates and were used to prepare nanoporOus membranes and for polymer imprinting [67,20]. 

Blumstein, A. (ed.). Liquid Crystaline Order in Polymers, Academic Press, New York (1978). 

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