Some conclusions from simulating experiments are validated though the experiments of the hot stage polarizing microscopy ( hspom ) and differential scanning calorimetry ( dsc ) 同時,通過熱臺偏光顯微鏡、 dsc等實驗驗證了部分計算機模擬實驗得到的結(jié)果。
Polarized microscopy , sem - eds , xrf , uv - vis , pl , ftir , epr have been used in this study to investigate two chameleon diamonds and a synthetic diamond which show color - change effects 摘要對具有變色效應的兩顆變色龍金剛石與一顆鮮黃色合成金剛石進行了掃描電鏡能譜、 x射線熒光光譜、顯微紅外光譜、紫外可見吸收光譜、光致發(fā)光譜、電子順磁共振譜等測試研究,以探討引起金剛石變色的原因。
A super acylation catalyst , 4 - dimethylamino pyridine ( dmap ) , was prepared and used to synthesize cholesteryl ester compounds . four kinds of cholesteryl ester compounds such as cholesteryl p - alkoxyl benzoate , cholesteryl dicarboxylate , cholesteryl lumequeic ester and coattail - like cholesteryl ester were synthesized by acylation method and super acylation catalyst method . chemical structures and liquid crystal behaviors of the synthesized samples have been characterized by using element analysis , ftir , dsc and polarized microscopy with a hot stage 本文合成了高效?;呋瘎? -二甲基氨基吡啶( 4 - dimethylaminopyridine , dmap ) ,采用酰氯化法和高效酰化催化劑法分別合成了對烷氧基苯甲酸膽甾醇酯、對稱脂族二羧酸膽甾醇酯、烯酸膽甾醇酯及燕尾型膽甾醇酯四類膽甾醇酯衍生物,并進行了化學結(jié)構(gòu)和液晶性能的表征。