منابع مشابه
Siloxane-based polymer epoxies for optical waveguides
We introduce a new class of siloxane-based epoxy polymers for thin film optical waveguide applications. The thickness of spun-on films can be controlled by varying either spin speed or viscosity using solvents. Cured films exhibit excellent adhesion to silicon oxide and Al and excellent thermal and chemical stability. Waveguides of ~ 2 micron thickness on silicon oxide exhibit <0.2 dB/cm loss a...
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Nanoimprint lithography technologies (NIL), introduced by Chou et al. in 1995 [1], may be used to overcome the feature size limitation encountered in classical photolithography while remaining more economical than lithographies based on electron, ion beam, x-ray, and scanning probe tips. In the approach involving hot-embossing of a thermoplastic resist layer, a sub-10nm [2] resolution has been ...
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The coemulsification method suitable for the formulation of microcapsules of n-eicosane coated with a polysiloxane is developed. This method allows to synthesize core-shell microcapsules of paraffin which have the shape of spheres or distorted spheres and are designed for the use as phase change materials. The microcapsules are formed in aqueous phase by the precipitation of n-eicosane together...
متن کاملOptimization of Holographic Polymer Dispersed Liquid Crystals Using Siloxane-containing Materials
Optimization of performance of holographic gratings was investigated by changing the chemical structures of photopolymerizable monomers, the LC content, and recording beam intensity, which strongly related to the control of kinetics of polymerization and phase separation of LCs. High diffraction efficiency was obtained using 3-acryloxypropyltrimethoxysilane (APTMS) and 2-[(3,4-epoxycyclohexyl)e...
متن کاملChitosan/Siloxane Hybrid Polymer: Synthesis, Characterization and Performance as a Support for Immobilizing Enzyme
O polímero híbrido derivado de siloxano e quitosana foi obtido pela técnica sol-gel, tendo como precursor o tetraetilortosilicato (TEOS). O suporte híbrido obtido foi modificado quimicamente com epicloridrina e utilizado para imobilizar lipase de Burkholderia cepacia. O híbrido SiO2-quitosana deu origem a uma nova estrutura macromolecular na qual as partículas inorgânicas encontramse dispersas ...
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ژورنال
عنوان ژورنال: The Journal of the Society of Chemical Industry, Japan
سال: 1962
ISSN: 0023-2734,2185-0860
DOI: 10.1246/nikkashi1898.65.10_1693