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Mesoscopic chemical reactors: high-performance polymers K. Kageyama et al., Science, 285, 2113 (1999) Extrusion of ultra-high-molecular-weight polyethylene.

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Presentation on theme: "Mesoscopic chemical reactors: high-performance polymers K. Kageyama et al., Science, 285, 2113 (1999) Extrusion of ultra-high-molecular-weight polyethylene."— Presentation transcript:

1 Mesoscopic chemical reactors: high-performance polymers K. Kageyama et al., Science, 285, 2113 (1999) Extrusion of ultra-high-molecular-weight polyethylene

2 Processing & Ordering Monoliths with highly ordered domains Fibers with aligned mesophases Aligned thin films 1.522.533.54 Perpendicular Parallel x4 Arbitrary Intensity  95 Å (200)(300) Powders with high porosity

3 Multicomponent, Processable, & Hierarchically Ordered Control of competing kinetic processes:  Diffusion & convective mixing  Inorganic hydrolysis  Self-assembly  Inorganic oxide polymerization  Solvent evaporation  Fiber/film draw rates, patterning  Inorganic oxide crystallization

4 Purifications and Reactions: pharmaceuticals, environmental remediation, etc. Fuel Cells: proton exchange membranes for high temperature operation Low-Dielectric-Constant Materials: ultra-small transistors, integrated circuits, microelectronics Functionalized Mesoporous Membranes: mesoporous silica

5 50 nm Incorporation of Optical Functionalities Organic Dyes Conjugated Polymers Organometallics DNA Semiconducting Quantum Dots Nanowires Inorganic Charge Transfer Rare Earth Complexes Enzymes, e.g., organophosphorus hydrolase N NO 2 O In transparent mesoporous solids In transparent composites


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