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lxhlxh052c木虫 (著名写手)
小木虫之无虫
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[交流]
求高手翻译（不要翻译软件修改修改的）
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首先将丙烯酰胺、季戊四醇和硝酸铈铵分别配制成一定浓度的水溶液。向反应瓶中加入50mL的AM溶液和一定体积的季戊四醇溶液。反应瓶经充分除氧后密封，用注射器向反应瓶中加入一定量的硝酸铈铵溶液，震荡反应瓶，混合均匀，然后将反应瓶置入一定温度的恒温槽中，反应一定时间，用一定量的丙酮沉淀。沉淀物经机械切碎后，在丙酮中浸泡24h，室温烘干再经丙酮回流数小时，除去单体，在25℃真空烘箱中烘干至恒重。 谢谢高手帮忙！！！ |
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lvdq44
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lxhlxh052c(金币+10, 翻译EPI+1): 2010-04-21 09:56
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Firstly,prepare the water solutions of given concentrations of acrylamide,pentaerythritol and ammonium cerium nitrate respectively. Add 50 ml of AM solution and a given volume of pentaerythritol solution to a reaction flask which is sealed after sufficient deoxigenation.Then add a given amount of ammonium cerium nitrate solution by injection,and mix it well by shaking the flask.Then put the flask in a thermostatic bath of a given temperature. After a given reaction duration,precipitate the mixture with a given amount of acetone.After being shredded michanically,the precipitate is immersed in acetone for 24h,and dried under room temperature ,and then distilled with acetone for a few hours in a column equipped with a reflux condenser to remove the monomer.Finally,the precipitate is dried to constant weight at 25 C in a vacuum oven. |
5楼2010-04-21 01:01:02
lastzealot
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lxhlxh052c(金币+10): 2010-04-21 09:56
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First of all, acrylamide, pentaerythrite and ammonium ceric nitrate were mixed by some concentration in an aqueous solution. 50 mL AM solution and a certain amount of pentaerythrite were added into the reaction flask, followed by deoxidization. Then some ammonium ceric nitrate was injected with a syringe, and a little vibration was made to obtain a uniform solution. The reaction system was kept in a thermostatic bath for a certain period of time. Then acetone was employed to precipitate the resultant. The product was squeezed the immersed in the acetone for 24 h. Drying was done at ambient temperature and refluxed in acetone for hours to get rid of monomers. Finally, a vacuum oven was used to dry the product to a constant weight. [ Last edited by lastzealot on 2010-4-20 at 20:21 ] |
2楼2010-04-20 13:59:44
lastzealot
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3楼2010-04-20 14:00:11
melody-yhl
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4楼2010-04-20 16:22:33
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