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Enhanced cycling stability of Li–O2 batteries by using a polyurethane/SiO2/glass fiber nanocomposite separator
A considerable improvement in the cycle performance of aprotic Li–O2 batteries was achieved by using a polyurethane/SiO2 gel nanoparticles/glass fiber (PU/SiO2/GF) nanocomposite separator, where a persistent capability of 1000 mA h g1 was maintained for at least 300 charge/discharge cycles in a DMSO electrolyte with 1 M LiClO4 and 0.05 M LiI. In comparison, the cell with a conventional GF sepa...
http://www.polymer.cn//ss/luokun998/publicationsshow_12910.html |
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158. Supertoughened Polylactide Binary Blend with High Heat Deflection Temperature Achieved by Thermal Annealing above the Glass Transition Temperature
Through thermal annealing above the glass transition temperature, a supertoughened binary blend with the highest notched Izod impact strength of 98 KJ/m2 was achieved, which was about 52 times of that of neat polylactide (PLA; 1.9 KJ/m2). The binary blend was composed of biocompatible and biodegradable PLA and ethylene?acrylic ester?glycidyl methacrylate terpolymer (EGMA) elastomer at the compos...
http://www.polymer.cn//ss/zhigangwang/publicationsshow_12642.html |
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Magnetic impurity doping induced spin-glass state and short-range zigzag order in the honeycomb iridate Na2IrO3
Based on the modied Heisenberg-Kitaev model, the eects of magnetic substitution on the magnetic properties of the honeycomb-lattice iridate Na2IrO3 are studied using Monte Carlo simulations. It is observed that the long-range zigzag state of the original system is rather fragile and can be replaced by a spin-glass state even for small substitution, well consistent with the experimental observation...
http://www.polymer.cn//ss/Luxubing/publicationsshow_12560.html |
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4.【J. Appl. Polym. Sci.】 Pressure-Dependent Glass-Transition Temperatures of poly(methyl methacrylate) /poly(styrene-co-acrylonitrile) Blends
The pressure-dependent glass-transition temperatures (Tgs) of poly(methyl methacrylate) (PMMA)/poly(styrene-co-acrylonitrile) (SAN) blends were determined by pressure–volume–temperature (PVT) dilatometry via an isobaric cooling procedure. The Gordon–Taylor and Fox equations were used to evaluate the relationships between the Tgs and compositions of the PMMA/SAN system at different pressures. ...
http://www.polymer.cn//ss/wengangyao/publicationsshow_12238.html |
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THE GLASS FORMATION OF A REPULSIVE SYSTEM WITH ALSO A SHORT RANGE ATTRACTIVE POTENTIAL: A RE-INTERPRETATION OF THE FREE VOLUME THEORY
In this feature article, we first make some simple reviews about the most popular theories for glass transition: 1) Free volume theory, 2) Entropy theory, 3) G€otze’s Mode coupling theory, and 4) Caging and Jamming theory.We address the issue of existing studies of glass transformations. Then, we review some special colloidal/polymer model systems which can give a repulsive potential together w...
http://www.polymer.cn//ss/chengheiccas/publicationsshow_12050.html |
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014. Glass transition in single poly(ethylene oxide) chain: A molecular dynamics simulation study
Local dynamics of single poly(ethylene oxide) chain in various environments (bulk, film, and isolated systems) has been characterized by the reorientation functions of various backbone bond vectors. Within any observation time, the variations of these reorientation functions with the temperature can be well described by the Kohlrausch-Williams-Watts (KWW) like equation, in which the fitted tempe...
http://www.polymer.cn//ss/wuchaofu/publicationsshow_9827.html |
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Probing the Two-Stage Transition upon Crossing the Glass Transition of Polystyrene by Solid-State NMR
A two-stage transition upon crossing the glass transition of polystyrene with increasing temperature was precisely determined and
interpreted by using solid-state nuclear magnetic resonance (SSNMR), 1H-1H dipolar couplings based Double
Quantum-Filtered (DQF) and dipolar filter (DF) experiment and 13C
Chemical Shift Anisotropy (CSA) based centerband-only detection of exchange (CODEX) experiment ar...
http://www.polymer.cn//ss/sunpingchuan/publicationsshow_9032.html |
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Well-defined high refractive index poly(monothiocarbonate) with tunable Abbe''s numbers and glass-transition temperatures via terpolymerization
The synthesis of thermoplastics with high refractive index (n) and high Abbe’s number (Vd) is rarely reported. This work describes well-controlled synthesis of a soluble poly(monothiocarbonate) with high n and Vd values by using carbonyl sulfide (COS) as sulfur resource. The alternating COS/cyclohexene oxide (CHO)/propylene oxide (PO) terpolymerization was well performed by using...
http://www.polymer.cn//ss/xhzhang/publicationsshow_8493.html |
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Colloidal particles with various glass transition temperatures: preparation, assembly, and the properties of stop bands under heat treatment
Monodisperse P(St-co-nBA-co-AA) colloidal microspheres with various glass transition temperatures (T gs), whose average particle sizes were about 300 nm, were prepared using soap-free emulsion polymerization by adjusting the ratio of styrene and n-butyl acrylate. Colloidal photonic crystals were assembled with these microspheres by vertical deposition method. Stop bands of colloid...
http://www.polymer.cn//ss/zhangqiuyu/publicationsshow_7794.html |
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Scalable preparation of multiscale carbon nanotube/glass fiber reinforcements and their application in polymer composites
The introduction of carbon nanotubes (CNTs) into conventional fiber
to construct a hierarchical structure in polymer composites has attracted great
interest owing to their merits of performance improvement and multiple
functionalities. However, there is a challenge for realizing the scalable preparation
of the multi-scale CNT-glass fiber (CNT-GF) reinforcements in practical
application. In this wo...
http://www.polymer.cn//ss/tanglongcheng/publicationsshow_7775.html |
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