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【答案】应助回帖
★ ★ ★ ★ ★ ★ ★
Carena: 金币+1, 感谢应助，辛苦 2012-12-17 21:09:40
Carena: 金币+1, 鼓励一下 2012-12-17 21:09:54
柠檬晓精灵: 金币+5, 翻译EPI+1, ★★★★★最佳答案 2012-12-18 00:21:12
供参考：
Organic microporous materials are widely used in sewage treatment and gas storage. Based on previous studies, we conducted further studies on increasing the aperture adsorption of ultra-crosslinked polymer. The high performance of ultra-crosslinked polymer displayed great application potentials in many fields. By use of 1, 3-dibromopropane as crosslinker and N, N-dimethylanilinium amide as solvent, ultra-crosslinked polyaniline was synthesized from the polyaniline obtained from aniline. Different reaction conditions were employed for the synthesis of ultra-crosslinked polyaniline. It was synthesized at the temperature of 0 °C, 80 °C, and 140 °C respectively. Infrared detection was applied to the polyaniline and ultra-crosslinked polyaniline, and electron microscopy was applied to the ultra-crosslinked polyaniline. The results showed that microporous structures with micro aperture ranging from several to dozens of nano meters were produced in the ultra-crosslinked polyaniline synthesized at the temperature of 140 °C, achieving the expected assumption. The infrared spectrum of polyaniline synthesized at the temperatures of 0 °C and 80 °C showed that no methylene absorption peak appeared in the 2900 cm-1 region, indicating the failure of the super cross-linking reaction. Thus, no characteristic peak of the crosslinking agent was found in the polymer. It can be found from the 3 groups of reactions that the desired temperature for reaction is 140 °C. The other 2 groups of reactions failed for the lack of the desired temperature for the energy barrier of the reaction. |
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