Enhancement of molecular-shape selectivity in high-performance liquid chromatography through multi-anchoring of comb-shaped polymer on silica.
Poly(octadecylacrylate) having plural trimethoxysilyl groups in the side chain (co-ODA(n)) was newly synthesized and immobilized onto silica through these groups. The liquid chromatographic behavior of silica-supported co-ODA(n) (Sil-co-ODA(n)) was investigated and compared with that of Sil-ODA(n), in which poly(octadecylacrylate) was immobilized through a terminal trimethoxy group at one side of the polymer main chain. Sil-co-ODA(n) showed higher selectivity for molecular shape, especially molecular planarity of PAHs than Sil-ODA(n).
Shundo
Atsuomi
A
Department of Applied Chemistry and Biochemistry, Kumamoto University, Japan.
Nakashima
Risa
R
Fukui
Megumi
M
Takafuji
Makoto
M
Nagaoka
Shoji
S
Ihara
Hirotaka
H
D000179:Acrylates / Q000737:chemistry*; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D011084:Polycyclic Aromatic Hydrocarbons / Q000302:isolation & purification*; D012821:Silanes / Q000737:chemistry*; D012822:Silicon Dioxide / Q000737:chemistry*; D013696:Temperature
D000179:Acrylates; D011084:Polycyclic Aromatic Hydrocarbons; D012821:Silanes; C513222:poly(octadecylacrylate); D012822:Silicon Dioxide; C071717:trimethoxysilane