Peer-Reviewed Journal Details
Mandatory Fields
Kelleher, BP; Sutton, D; O'Dwyer, TF
2002
November
Journal Of Colloid And Interface Science
The effect of kaolinite intercalation on the structural arrangements of N-methylformamide and 1-methyl-2-pyrrolidone
Published
()
Optional Fields
kaolinite N-methylformamide 1-methyl-2-pyrrolidone intercalation structural arrangement NUCLEAR MAGNETIC-RESONANCE DIMETHYL-SULFOXIDE GUEST MOLECULES COMPOUND DYNAMICS DIMETHYLSULFOXIDE HALLOYSITE
255
2
219
224
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).
0021-9797
10.1006/jcis.2002.8666
Grant Details