Multifunctional composite solids

Polyhedral oligomeric silsesquioxanes (POSSs) could be used as building blocks for multifunctional composite solids and for hierarchical inorganic/organic hybrid architectures. These compounds may include inert hydrocarbon moieties, reactive groups, and... 

Weidner, E., M. Petermann, and Z. Knez, Multifunctional composites by high-pressure spray processes. Current Opinion in Solid State Materials Science, 2003. 7(4,5) p. 385-390. 

High Solids Costings. High soHds coatings resemble the technology of solvent-free coatings but the compositions contain ca 70% by volume of soHd resin and are modified by reactive diluents, low viscosity multifunctional resins, or backbone stmctures other than the bisphenol A moiety. 

A typical EB curable formulation will generally consist of a relatively high molecular weight solid or semi-solid difunctional acrylic resin reduced to application viscosity with combinations of liquid mono- and multifunctional acrylic monomers. These acrylic monomers, along with a few other selected polymerizable monomers, serve as reactive diluents and allow formulation of solvent-free compositions. Usually, small amounts of additives are also used in order to provide special properties, such as slip. 

The necessity of molecular transport must obviously arise whenever the reaction sites X and Y are not in geometrically identical locations, and it is precisely this condition that characterizes an important requirement for the multifunctional catalyst. In the case of a catalyst solid that consists of a composite of X-sites and F-sites in a single reactor zone the physical transport of intermediates between X- and F-sites must proceed by a diffusion prccess, which then becomes an important and integral link in the chain of reaction events. 

The concept of nanofluids to further intensify microreactors has been discussed by Fan et al. [17]. The nano-fluids are suspensions of solid nano-partides with sizes typically of 1-100 nm in traditional liquids such as water, glycol and oils. These solid-liquid composites are very stable and show higher thermal conductivity and higher convective heat transfer performance than traditional liquids. They can thus be used to enhance the heat transfer in nanofluids in compact multifunctional reactors. A nanofluid based on Ti02 material dispersed in ethylene glycol showed an up to 35% increase in the overall heat transfer coefficient and a... 

Xerox Corporation has filed two patents in which supramolecular polymers are used as binders in ink compositions. One application relates to hot-melt inks, consisting of a colorant and a binder [29]. These inks are solid at temperatures below 50°C, and liquid with a viscosity around 20 cps at 160 C. The binder is a multifunctional low molecular weight compound that has been functionalized with 2 to 5 UPy-groups, resulting in polyether compounds that form supramolecular networks. Mixing these materials at elevated temperatures with other ingredients like UV-stabilizers, antioxidants, and colorants, results in inks that can be used in hot-melt ink printers. 

The polyester prepolymer is a solid and, for forming the composite matrix, it is dissolved in styrene, a small amount of multifunctional monomer divinyl benzene, and a free-radical peroxide initiator, benzoyl peroxide. The resultant... 

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