Preparation of nanocomposites of linear poly(ethylenimine) with layered hosts

被引:41
作者
Oriakhi, CO
Nafshun, RL
Lerner, MM
机构
[1] OREGON STATE UNIV,DEPT CHEM,CORVALLIS,OR 97331
[2] OREGON STATE UNIV,CTR ADV MAT RES,CORVALLIS,OR 97331
关键词
layered compounds; nanostructures; intercalation reactions; ionic conductivity;
D O I
10.1016/S0025-5408(96)00142-0
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Nanocomposites are prepared with the layered hosts Na-montmorillonite, MoS2, MoSe2, TiS2, TaS2, MoO3, and MPS(3) (M = Mn, Cd) incorporating linear poly(ethylenimine) (LPEI) by reaction of the colloidal host and LPEI in aqueous solution. The products exhibit lattice expansions along the stacking direction of 3.9-4.7 Angstrom and polymer contents of 13-18 mass percent, consistent with the formation of a single adsorbed monolayer of LPEI between host sheets. FTIR spectroscopic analyses indicate a low degree of protonation for the included polymer. Impedance data indicate that the bulk ionic conductivity of Na-montmorillonite increases by several orders of magnitude upon incorporation of LPEI.
引用
收藏
页码:1513 / 1520
页数:8
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