| 초록 |
Layered nanocomposite between alkylammonium surfactants and layer silicate minerals have been applied as immobilization and/or delivery vectors for agricultural active ingredients such as bacterial peptides. Intercalative nanocomposites of expandable clays (natural montmorillonite and synthetic hectorite) and cocamido-diethanolamine (CDEA) are firstly prepared by a simple solid state intercalation process. In the nanocomposites, CDEA molecules have a paraffin-like arrangement between silicate layers with the expansion of basal spacing as large as 40 Å. Additional weak Van Der Waals interaction plays an important role in the formation of paraffin-like stacking structure. Inclusion of dipeptides, Bacillus(BS07M), paromomycine, etc. could be achieved through the van der Waals interaction between guest molecules and interlayer surfactant chain. The modified interlayer spaces act as sorption sites for active ingredients. |
