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首页> 外文期刊>Journal of Colloid and Interface Science >The effect of kaolinite intercalation on the structural arrangements of N-methylformamide and 1-methyl-2-pyrrolidone
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The effect of kaolinite intercalation on the structural arrangements of N-methylformamide and 1-methyl-2-pyrrolidone

机译：高岭石插层对N-甲基甲酰胺和1-甲基-2-吡咯烷酮的结构排列的影响

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N-methylformamide (NMF) and 1-methyl-2-pyrrolidone (NMP) were intercalated with kaolinite, characterized, and deintercalated for analysis (the NMP was intercalated after expansion of the kaolinite layers with NMF). The dynamics of guest molecules within the kaolinite lamellae was studied by means of FT-IR and liquid state H-1 and C-13 NMR on the NMF and NMP before intercalation and also on the deintercalated solutions. Both compounds were deintercalated using water. The FT-IR spectra show no significant differences before and after intercalation, for either NMF or NMP, indicating that there is no change in molecular arrangement as a result of intercalation. H-1 and C-13 NMR investigations supported the findings of the FT-IR and indicated that structural arrangement and orientation of the guest species remain the same after deintercalation. This work provides evidence that intercalation is due to weak physical bonding. (C) 2002 Elsevier Science (USA). [References: 22]
机译：将N-甲基甲酰胺（NMF）和1-甲基-2-吡咯烷酮（NMP）嵌入高岭石中，进行表征，然后脱嵌进行分析（NMP在高岭土层用NMF膨胀后进行嵌入）。通过FT-IR和液相H-1和C-13 NMR在插层前在NMF和NMP上以及在脱插溶液上研究了客体分子在动力学上的动力学。用水将两种化合物脱嵌。对于NMF或NMP，FT-IR光谱在插入前后均无显着差异，这表明由于插入，分子排列没有变化。 H-1和C-13 NMR研究支持了FT-IR的发现，并表明脱嵌后客体物种的结构排列和取向保持不变。这项工作提供了证据表明插层是由于较弱的物理键合所致。 （C）2002 Elsevier Science（美国）。 [参考：22]

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