Non-ionic block copolymers leading to a highly ordered organosilica material
نویسندگان
چکیده
منابع مشابه
Nucleation of ordered phases in block copolymers.
Nucleation of various ordered phases in block copolymers is studied by examining the free-energy landscape within the self-consistent field theory. The minimum energy path (MEP) connecting two ordered phases is computed using a recently developed string method. The shape, size, and free-energy barrier of critical nuclei are obtained from the MEP, providing information about the emergence of a s...
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We propose a new and general method for discovering novel ordered phases of block copolymer melts. The method involves minimizing a free energy functional in an arbitrary unit cell with respect to the composition profile and the dimensions of the unit cell, without any prior assumption of the microphase symmetry. Varying the initial conditions allows to search for different stable and metastabl...
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Ordered mesoporous materials (OMMs), of which MCM41 is perhaps the most prominent example, are characterized by well-defined pore systems and large surface areas on the order of 700–1000 m g. This makes OMMs very interesting for numerous applications, such as in chromatographic separation or as supports for catalytically active compounds. Conventional pure silica materials are somewhat limited ...
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ژورنال
عنوان ژورنال: Journal of Physics: Conference Series
سال: 2012
ISSN: 1742-6596
DOI: 10.1088/1742-6596/351/1/012015