Studies on beryllium soaps. Infrared absorption spectra and thermogravimetric analysis

Mehrotra, K. N.; Kachhwaha, Rajendra; Singh, Munendra

doi:10.1016/0040-6031(83)85036-9

Cited by 9 publications

(1 citation statement)

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“…As a result, they exhibit diverse physicochemical properties; hence, they find extensive commercial applications in protective coating agents, paints, ink driers, polymer stabilizers, catalysts, waterproofing agents, lubricants, fuel additives and fungicides [1,2]. Some of these compounds are also used in photothermogravimetry [3], as low angle calibrants for neutron diffraction instruments [4,5] and in the manufacturing of pharmaceuticals [6][7][8][9]. However, the most exciting aspect of metal carboxylate chemistry stems from their ability to undergo mesomorphic phase transitions (metal containing liquid crystal) of various textures.…”

Section: Introductionmentioning

confidence: 99%

Theories and experimental investigations of the structural and thermotropic mesomorphic phase behaviors of metal carboxylates

Nelson

Taylor

2014

Appl Petrochem Res

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Investigations on the phase behaviors and structural properties of mono-, di-and poly-valent metal carboxylates are reviewed with reference to developments in experimental and theoretical concepts surrounding their liquid crystalline properties. The main methods of structural investigation such as X-ray diffraction, infrared and 13 C-NMR spectroscopies are examined in detail on the basis of common synthetic routes leading to the isolation of pure compounds. A detailed review of the thermal behaviors of several metal carboxylates is presented along with proposed theories and molecular models for odd-even alternation, chain length effects, phase structures and mesophase formation. Theories explaining the effects of metal ion radii and chain unsaturation are also discussed. Proposed degradation mechanisms resulting in the formation of various products and kinetic studies are also considered. Though this review highlights a number of investigations on the structural and phase properties of the mostly widely studied carboxylates, the results presented here strongly indicate that there is room for further studies on some of these systems.

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