Serwis Infona wykorzystuje pliki cookies (ciasteczka). Są to wartości tekstowe, zapamiętywane przez przeglądarkę na urządzeniu użytkownika. Nasz serwis ma dostęp do tych wartości oraz wykorzystuje je do zapamiętania danych dotyczących użytkownika, takich jak np. ustawienia (typu widok ekranu, wybór języka interfejsu), zapamiętanie zalogowania. Korzystanie z serwisu Infona oznacza zgodę na zapis informacji i ich wykorzystanie dla celów korzytania z serwisu. Więcej informacji można znaleźć w Polityce prywatności oraz Regulaminie serwisu. Zamknięcie tego okienka potwierdza zapoznanie się z informacją o plikach cookies, akceptację polityki prywatności i regulaminu oraz sposobu wykorzystywania plików cookies w serwisie. Możesz zmienić ustawienia obsługi cookies w swojej przeglądarce.
Polymers containing poly(ethylene oxide) (PEO) have been investigated for solid electrolytes for lithium-ion batteries, which are preferred to be amorphous and have flexible polymer chains to achieve high Li ion conductivity. This paper reports ionic conductivity in a series of cross-linked PEOs prepared from poly(ethylene glycol) methyl ether acrylate (PEGMEA, monomer) and poly(ethylene glycol) diacrylate...
Monodispersed ligand-capped TiO 2 nanocrystals are synthesized by a low temperature solvothermal method using oleic acid (OA) as the capping agent. The single layer hybrid films based on the OA-capped TiO 2 nanocrystals and poly(9,9-dihexylfluorene) (PFH) are prepared by solution processing at room temperature and characterized by atomic force microscopy, UV–vis absorption and photoluminescence...
In vesicles of an ABC triblock copolymer, the soluble A and C blocks can be grafted onto the outer or the inner surfaces of the wall made of the insoluble B block. Traditionally, the determination of the fractions of A and B chain segments partitioned onto these two surfaces has been difficult. We show that they can be readily determined from NMR paramagnetic relaxation experiments. In such an experiment,...
A study on the correlation between electrical percolation and viscoelastic percolation for graphite (GP) filled high-density polyethylene (HDPE) conductive composites was carried out through an examination of the filler concentration φ dependence of the volume resistivity ρ and dynamic viscoelastic functions. The frequency ω dependence of G′ at low ωs decreased obviously with increasing GP concentration...
Isothermal crystallization and subsequent melting behavior of mesoporous molecular sieve (MMS) filled poly(ethylene terephthalate) (PET) composites have been investigated at the designated temperature by using differential scanning calorimeter (DSC). The commonly used Avrami equation was used to fit the primary stage of the isothermal crystallization. The Avrami exponents n were evaluated to be 2<n<3...
In this work, a novel processing method that combined extruding with laminate molding for preparing polymeric gradient material (PGM) has been investigated. Three modes of polypropylene/polyamide-6 flat PGM (signed with A1, A2, A3) are prepared successfully by using this new technique. The variation of composition, morphology and mechanical properties of specimens sampled along the thickness direction...
Poly(trimethylene terephthalate) has been melt spun at various take-up velocities from 0.5 to 8km/min to prepare fiber samples. The effect of take-up velocity on the structure and properties of as-spun fibers has been characterized through measurements of birefringence, density, wide-angle X-ray scattering, DSC melting behavior, tensile properties and boiling water shrinkage (BWS). The birefringence...
On the basis of phase separation temperatures (T s ) for poly(methyl methacrylate)/poly(styrene-co-acrylonitrile) blends of different compositions, measured by small angle laser light scattering, we have studied dynamic rheological behavior of these blends at different temperatures below, near and above T s . The results showed that the time–temperature superposition principle could...
High molecular weight poly(ethylene-2,6-naphthalate)(PEN) has been melt spun at various take-up velocities from 0.9 to 10km/min to prepare fiber samples. The effect of take-up velocity on the structure and properties of as-spun fibers has been characterized through measurements of birefringence, density, wide-angle X-ray diffraction, infrared analysis, DSC melting behavior, tensile properties and...
The effects of blend composition and take-up velocity on structural variations and physical properties of poly(ethylene terephthalate) [PET]/poly(ethylene-2,6-naphthalate) [PEN] blend fibres were studied using WAXS, n.m.r., d.s.c., density, tensile and thermal shrinkage tests. Over the ranges studied, the structure and properties of the blend fibres were significantly influenced by the composition...
Podaj zakres dat dla filtrowania wyświetlonych wyników. Możesz podać datę początkową, końcową lub obie daty. Daty możesz wpisać ręcznie lub wybrać za pomocą kalendarza.