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Nuclear Magnetic Resonance Studies in Lyotropic Liquid Crystals - Nuclear Magnetic Resonance Studies in Lyotropic Liquid Crystals (Paperback, Softcover reprint of the original 1st ed. 1975)
Loot Price: R2,898
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Nuclear Magnetic Resonance Studies in Lyotropic Liquid Crystals - Nuclear Magnetic Resonance Studies in Lyotropic Liquid Crystals (Paperback, Softcover reprint of the original 1st ed. 1975)
Series: NMR Basic Principles and Progress, 9
Expected to ship within 10 - 15 working days
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1. Lyotropic Liquid Crystals The class of compounds known as
thermotropic liquid crystals has been widely utilized in basic
research and industry during recent years. The properties of these
materials are such that on heating from the solid to the isotropic
liquid state, phase transitions occur with the formation of one or
more intermediate anisotropic liquids. The unique and sometimes
startling properties of these liquid crystals are the properties of
pure compounds. However, there exists a second class of substances
known as lyotropic liquid crystals which obtain their anisotropic
properties from the mixing of two or more components. One of the
components is amphiphilic, containing a polar head group (generally
ionic or zwitterionic) attached to one or more long-chain
hydrocarbons; the second component is usually water. Lyotropic
liquid crystals occur abundantly in nature, particularly in all
living systems. As a consequence, a bright future seems assured for
studies on such systems. Even now, many of the properties of these
systems are poorly understood. It is the purpose of this review to
consolidate the results obtained from nuclear magnetic resonance
studies of such systems and to provide a coherent picture of the
field. Probably the most familiar example of a lyotropic liquid
crystal is soap in water. A common soap is sodium dodecylsulphate
where an ionic group (sulphate) is attached to a hydrocarbon chain
containing twelve carbons.
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