منابع مشابه
Solid state and solution nitrate photochemistry: photochemical evolution of the solid state lattice.
We examined the deep UV 229 nm photochemistry of NaNO(3) in solution and in the solid state. In aqueous solution excitation within the deep UV NO(3)¯ strong π → π* transition causes the photochemical reaction NO(3)¯ → NO(2)¯ + O·. We used UV resonance Raman spectroscopy to examine the photon dose dependence of the NO(2)¯ band intensities and measure a photochemical quantum yield of 0.04 at pH 6...
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The characteristic features of luminescence from solid polymers are compared with the emission from the isolated 'monomer'. The dominance of excimer emission in the solid enables this to be used for the characterization of polymer blends, relaxation processes and transport properties. These may also be studied by electronic energy transfer and the incorporation of a luminescent probe enables th...
متن کاملOn chemisorption of polymers to solid surfaces
The irreversible adsorption of polymers to a two-dimensional solid surface is studied. An operator formalism is introduced for chemisorption from a polydisperse solution of polymers which transforms the analysis of the adsorption process to a set of combinatorial problems on a two-dimensional lattice. The time evolution of the number of polymers attached and the surface area covered are calcula...
متن کاملRheology of Polymers Near Liquid-Solid Transitions
Polymeric materials near the liquid-solid transition (LST) exhibit a very distinct relaxation pattern. The reference point for analyzing these patterns is the instant of LST at which relaxation becomes self-similar over wide ranges of the relaxation time. The universality of this transition and its consequences have been explored extensively during the past decade. This study will present an ov...
متن کاملAnisotropic Thermal Properties of Solid Polymers
This paper discusses the thermal conduction anisotropy in polymers by reviewing currently available theories and experimental methods for studying oriented polymers. The anisotropic thermal conductivity and diffusivity of oriented polymers originate from the difference between the thermal energy transport mechanisms parallel and perpendicular to their molecules. Recent progress in the developme...
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ژورنال
عنوان ژورنال: Kobunshi
سال: 1989
ISSN: 0454-1138,2185-9825
DOI: 10.1295/kobunshi.38.342