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qpalzm0523

木虫 (正式写手)

[求助] 均匀沉淀法制备催化剂中PEG的作用

看文献制备方法如下:an aqueoussolution containing SnCl2·2H2O (SCRC, 98.0%), Mn(NO3)2(50 wt.%solution), Ti(SO4)2(SCRC, 96.0%), urea (SCRC, 99.0%) and polyethylene glycol (in the solution, Mn/Ti = 1:3, Sn/(Mn + Ti) = 1:10, molarratio) was gradually heated to 90◦C and maintained at this tem-perature for 10 h with vigorous stirring. 其中不太明白加PEG的作用是什么呢?期待答疑解惑。
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qpalzm0523

木虫 (正式写手)

自己顶下!应该不是充当螯合剂的吧。
2楼2017-03-20 22:45:38
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star090945

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3楼2017-03-21 13:58:30
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qpalzm0523

木虫 (正式写手)

引用回帖:
3楼: Originally posted by star090945 at 2017-03-21 13:58:30
分散剂吧

感谢回复!促进均匀分散?可以简单说说促分散的机理吗?
4楼2017-03-21 15:00:11
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