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| 想問一下這里的先排出空氣,然后70度30分鐘,再加引發(fā)劑具體怎么操作啊 |
» 搶金幣啦!回帖就可以得到:
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which was then sealed with a silicon rubber septum and degassed using several N2/vacuum cycles. The flask was placed in a water bath at 70 °C for 30 min with stirring at 400 rpm. Emulsion polymerization was begun on addition of a solution of an initiator (KPS: 22 mg or VA- 080: 70 mg) in water (1.0 g). |
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通氣的時候記得把體系密封好,我一般是用兩個針頭一個進氣一個出氣,通氣的目的就是為了排除體系內(nèi)的氧氣,引發(fā)劑可以用注射器打進去 發(fā)自小木蟲Android客戶端 |
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