منابع مشابه
Responsive periodic mesoporous polydiacetylene/silica nanocomposites.
Responsive PMO materials have been synthesized through co-assembly of bridged diacetylenic silsesquioxane and surfactant. The spatially defined polydiacetylenic component, mesoporous network, and the covalent proximity of polydiacetylene to silica endow the PMO with mechanical robustness, reversible chromatic responses, improved thermal stability, and faster responses to chemical stimuli. This ...
متن کاملNanocomposites of ionic liquids confined in mesoporous silica gels: synthesis, characterization and performance
Preparation of ILs ILs (Scheme 1 in the article) were synthesized carefully and purified rigorously in our laboratory according to literature. 1, 2 S-butyltetrahydrothiophene chloride BThCl was prepared with high yield from the reaction of tetrahydrothiophene and appropriate amount of chlorobutane in acetone. Silver dicyanamide AgN(CN)2, (4.0 g, 11 mmol) was added to a solution of BThCl (5.2 g,...
متن کاملSilica reinforced triblock copolymer gels
The effect of silica and polymer coated silica particles as reinforcing agents on the structural and mechanical properties of polystyrene–poly(ethylene/butylene)–polystyrene (PS–PEB–PS) triblock gel has been investigated. Different types of chemically modified silica have been compared in order to evaluate the influence of the compatibility between gel and filler. Time-resolved SANS and small-a...
متن کاملPeriodic Mesoporous Organosilica Nanorice
A periodic mesoporous organosilica (PMO) with nanorice morphology was successfully synthesized by a template assisted sol-gel method using a chain-type precursor. The PMO is composed of D and T sites in the ratio 1:2. The obtained mesoporous nanorice has a surface area of 753 m(2) g(-1), one-dimensional channels, and a narrow pore size distribution centered at 4.3 nm. The nanorice particles hav...
متن کاملUltrabright fluorescent mesoporous silica particles
Recent self-assembly of ultra-bright fluorescent colloidal mesoporous (nanoporous) silica particles is highlighted. The particles can be up to two others of magnitude brighter than polymeric particles of comparable size assembled with quantum dots. Comparing with the maximum fluorescence of free dye in the same volume, the particles can show fluorescence which is higher by more than three order...
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ژورنال
عنوان ژورنال: MRS Proceedings
سال: 1996
ISSN: 0272-9172,1946-4274
DOI: 10.1557/proc-431-95