Effect of Electron Irradiation on the Thermodynamical and OpticalProperties of Cholesteryl Pelargonate

RohitVermaa; R.Dhar; R.Dabrowski; M.C. Rath; S.K. Sarkar

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Effect of Electron Irradiation on the Thermodynamical and OpticalProperties of Cholesteryl Pelargonate

机译：电子辐照对戊二酸胆固醇酯的热力学和光学性质的影响

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Thermodynamical and optical properties of pure and electron beam irradiated (20, 80 and 100 kGy doses)liquid crystalline material cholesteryl pelargonate (nonanoate) have been investigated by differential scanning calorimeter,polarized light microscopy and ultraviolet-visible spectroscopy. Transition temperatures, enthalpies and entropies arefound to be lowered due to the irradiation. A donor-acceptor type charge transfer complex peak is observed besides thepure sample peak in the ultraviolet-visible spectra due to irradiation. The concentrations of impurities have been estimatedby the area of the pure and charge transfer complex peaks besides using the Van’t Hoff equation. The concentration ofimpurity is found to increase linearly with the irradiation dose.

机译：通过差示扫描量热仪，偏光显微镜和紫外可见光谱法研究了纯和电子束（剂量分别为20、80和100 kGy）液晶性壬酸胆固醇酯（壬酸酯）的热力学和光学性质。发现由于辐射而降低了转变温度，焓和熵。在紫外线可见光谱中，由于照射，除了纯样品峰以外，还观察到了供体-受体型电荷转移复合物峰。除了使用Van’t Hoff方程之外，还通过纯电荷转移复合物峰的面积估算了杂质的浓度。发现杂质浓度随照射剂量线性增加。

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《The Open Crystallography Journal》 |2011年第1期|共9页
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RohitVermaa; R.Dhar; R.Dabrowski; M.C. Rath; S.K. Sarkar;
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1. EFFECT OF γ-IRRADIATION ON LIQUID CRYSTALLINE PROPERTIES OF CHOLESTERYL PELARGONATE (NONANOATE) [J] . S. L. SRIVASTAVA, RAVINDRA DHAR Radiation Physics and Chemistry . 1996,第2期

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2. Synthesis of composite hydrogel of glutamic acid, gum tragacanth, and anionic polyacrylamide by electron beam irradiation for uranium (VI) removal from aqueous samples: Equilibrium, kinetics, and thermodynamic studies [J] . Moghaddam Reza Hafezi, Dadfarnia Shayessteh, Shabani Ali Mohammad Haji, Carbohydrate Polymers: Scientific and Technological Aspects of Industrially Important Polysaccharides . 2019,第期

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3. Thermodynamic investigation of an insulator irradiated by a low-energy electron beam [J] . Pesty F, Garoche P The European physical journal, B. Condensed matter physics . 2005,第1期

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4. Photodynamic processes of cholesteryl oleate accumulated on the arterial wall using IR free electron lasers [C] . Kunio Awazu, Free Electron Laser Research Institute, Osaka, Laser-Tissue Interaction X: Photochemical, Photothermal, and Photomechanical . 1999

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5. A Computational Study on the Thermodynamics and Kinetic Evolution of W-Re Alloy under Irradiation. [D] . Huang, Chen-Hsi. 2017

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Effect of Electron Irradiation on the Thermodynamical and OpticalProperties of Cholesteryl Pelargonate

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