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wyq4504

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Anion exchangers SiPyRN3 and SiPyRN4 having pyridine and N-methylpyridinium functional groups,respectively,were prepared previousli by polymerization of vinylpyridine and DVB monomers within porous silica support and subsequent quaternization (using dimethylsulphate) in the case of SiPyRN4
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cloisonne

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qingfeng877680(金币+2,VIP+0):兄弟翻译辛苦了。 7-25 17:09
阴离子交换树脂SiPyRN3和SiPyRN4分别有吡啶和N-甲基化吡啶的功能基团, 在之前完成制备。前者由乙烯基吡啶聚合而成,后者由DVB单体在多孔二氧化硅的载体中形成四聚体 (使用二甲基硫酸盐)如合成SiPyRN4。

[ Last edited by cloisonne on 2009-7-21 at 15:41 ]
3楼2009-07-21 15:39:36
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MCWANDE

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wyq4504(金币+6,VIP+0): 7-21 16:14
含有吡腚和N-甲基吡腚的阴离子交换树脂SiPyRN3和SiPyRN4 分别是通过将乙烯基吡腚和苯二乙烯在多孔硅载体里聚合得到的. 对于SiPyRN4而言, 聚合后还需要用二甲砜进行一步季铵化反应.
采菊东篱下,悠然见南山.
2楼2009-07-21 15:33:11
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