- Thermal, UV and FTIR spectral studies in alkali metal cinnamates
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A single crystal of sodium and potassium cinnamates was grown by slow evaporation of methanol solution at room temperature. The effect of metals sodium and potassium on the electronic structure of cinnamic acid was studied. In this research many analytical methods such as FTIR, UV, second harmonic generation (SHG) and TG-DTA were used: The spectroscopic studies lead to conclusions containing the distribution of the electronic charge in molecule, the delocalisation of π electrons and the reactivity of metal complexes. The SHG efficiency is more pronounced in the presence of sodium and potassium dopant in the growth medium. Incorporation of sodium and potassium increase the thermal stability ensuring the suitability of material for possible non-linear optical (NLO) application up to 180 °C. Akademiai Kiado, Budapest, Hungary 2010.
- Madhurambal,Ravindran,Mariappan,Mojumdar
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- Alkali metal cinnamate powder and method for preparation
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The present invention relates to a method for the preparation of an alkali metal cinnamate powdery product, preferably potassium cinnamate or sodium cinnamate, and to the resulting product itself with novel structural properties. The powder of the present invention is made via spray-drying and/or spray agglomeration and has a higher flowability, is less cohesive and less dusty, has an improved dissolution rate and in particular has a very favorable organoleptic profile. The invention is also directed to product applications in which the novel cinnamate product of the present invention may be applied.
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(2011/06/24)
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