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Hierarchically Porous Materials: Preparation and Application to Separation Sciences
Published on Jun 16, 20144401 Views
Polymerization-induced phase separation in chemically cross-linked systems has been applied to obtain hierarchically porous monolithic materials in a broad range of compositions from metal oxides, met
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Chapter list
Hierarchically Porous Monoliths00:00
Outlines04:32
Outlines of Sol-Gel Method07:48
Sol-Gel reactions of Silica09:50
Goal11:26
Control of Macropores through Polymerization-Induced Phase Separation 12:31
Preparation of Hierarchical Macro - & Mesoporous Monoliths12:49
Phase Separation in Polymerizing System16:35
Phase Separation Induced by T∆S Term18:36
Arresting Transient Structure by Sol-Gel Transition20:04
Time Evolution of Phase Domains by Spinodal Decomposition23:23
Relation between Composition and Resultant Morphology24:46
Independent Controls of Pore Diameter and Pore Volume26:17
Tailoring Mesopores by Aging Process26:51
Relation between Surface Curvature and Solubility 27:14
Temperature & pH Dependence of Solubility of Silica28:33
Preparation of Hierarchical Macro - & Mesoporous Monoliths29:20
Structural Evolution during Aging in Weakly Basic Condition29:55
Mesopores after Basic Aging and Calcination33:02
Distribution of Hierarchical Macropores and Mesopores34:15
Monolithic Silica as a Separation Medium for HPLC34:43
Liquid Chromatography (Twett 1907)34:50
LC separation and theoretical plates35:10
Particle-packed vs. Monolithic Columns35:14
Van Deemter Curve (Plate Height vs. Linear Velocity)36:49
Van Deemter Curves of Monolithic and Particulate Columns 37:28
Column Pressure vs. Linear Velocity (Permeability) 38:26
Separation Impedance (time and pressure dependence)38:57
Ultra-fast HPLC Separation with Monolithic Column40:02
ChromolithTM - applications40:45
Column Connection Generates Higher Plate Numbers 41:00
Fast Analysis by Combined Solvent- and Flow-Gradient41:35
High Throughput Analysis42:26
Cromolith prep42:34
Capillary Columns (Second Generation)42:46
Very Long (>10 m) Capillary Columns Generate >1M Plates!43:55
Micro-analysis using MEMS Chips44:32
MSQ Gels in a Microgroove Template44:43
Schematic Presentation of Two-Dimensional HPLC45:01
2D-PAGE vs. 2D-HPLC (analysis of biomolecules) 45:08
DNA Purification Tool (GL Sciences Inc.)45:17
Protein Digestion Tool with Immobilized Trypsin45:49
Monolith-Based SPE Tools46:22
Recent Progress by Refined Structure Control46:48
Lab-made Monolithic Column with a Polymer Clad46:50
Semi-Micro Column 2-3 mm Thick with Glass Clad47:17
Macropore Heterogeneity in Outermost Part of Monolith47:47
Separation of Alkylbenzenes by Semi-Micro Column48:07
Comparative H-u Curves of Particle-Packed and Monolithic Silica Columns48:38
Extra-Large Silica Monolith for Preparative-Scale Separations (up to 1000 mL)48:56
SEM Images of Large Silica Monolith with Enlarged Mesopores49:25
Hierarchically porous MSQ for separations49:49
MOｘMacroporous Gels （from Metal Salts）50:15
Phosphate-based Macroporous Monolith51:12
Various Porous Polymer Monoliths51:20
General Conclusions51:47
Thank you52:33
XVIII International Sol-Gel Conference52:40