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Formation and morphologies of ethylcyanoethyl cellulose/poly(epsilon-caprolactone) blending films
The texture of ethylcyanoethyl cellulose [(ECE)C]/poly(epsilon-caprolactone) (PCL)/dichloroacetic acid (DCA) solutions and the morphology of the (ECE)C/PCL blending films were studied by polarizing optical microscope. The critical concentration of the (ECE)C/PCL/DCA solutions, at which the mesophase began to appear, was not influenced by the addition of PCL molecules, and the evolution of the chol...
http://www.polymer.cnt//ss/Zhouxuesong/publicationsshow_738.html |
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62 Programmable actuation of porous poly(ionic liquid) membranes by aligned carbon nanotubes
关键字：actuators poly(ionic liquids) porous membranes programmable bending
A porous composite membrane, combined poly(ionic liquids) with aligned carbon nanotubes that shows anisotropic actuation toward organic solvent is developed. The membrane actuator shows rapid and reversible actuation in response to acetone vapor as well as improved conductivity. These properties allow the composite membrane to be organic solvent‐induced actuator as well as a power switch.
http://www.polymer.cn/research/sy_info19560 |
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43 Study of the effect of nanosized carbon black on flammability and mechanical properties of poly(butylene succinate)
关键字：carbon black flame retardancy mechanical properties poly(butylene succinate)
Biodegradable poly(butylene succinate)/nanosized carbon black (PBS/CB) nanocomposites were prepared by melt compounding to investigate the effect of CB on flammability and mechanical properties of PBS. In the nanocomposites, CB displayed some positive effect on improving the flame retardancy of PBS, mainly on the decrease of peak of heat release rate, the increase of limited oxygen index value, an...
http://www.polymer.cn/research/sy_info19556 |
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Soluble N-substituted poly(benzimidazole imide)s via C-N coupling reaction
关键字：N-substituted poly(benzimidazole imide)s; heat-resistant polymer; C?N coupling reaction; good solubility
Novelheat-resistantN-substitutedpoly(benzimidazole imide)s (PBIIs)withgoodsolubilitywere synthesized via aC?Ncoupling reaction. A model reaction was carried out to assist in determining the optimal reaction conditions for the polymerization and to elucidate the chemical structures of the polymers. The structures of the resulting polymers were characterized by means of Fourier transform infrared ...
http://www.polymer.cn/research/sy_info19476 |
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Intermolecular Hydrogen Bonding of Poly(Imino Imino Ketone Ketone)
关键字：hydrogen bonding, molecular simulation, poly(imino imino ketone ketone)
Molecular dynamics calculations were made of the distance from the hydrogen atom of the imino group to the distance of the oxygen atom of the carbonyl group of poly(imino imino ketone ketone) (PIIKK). The results showed that theoretically there was hydrogen bond formation between the hydroxyl group and the carbonyl group of PIIKK. The existence of the hydrogen bonding between the polymer chains ...
http://www.polymer.cn/research/sy_info19468 |
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Facile synthesis of soluble aromatic poly(amide amine)s via C–N coupling reaction: Characterization, thermal, and optical properties
关键字：aromatic poly(amide amine)s; high-performance
Aromatic poly(amide amine)s (APAAs), as novel highperformance polymers, have been obtained by the condensation polymerization of N,N’-bis(4-bromobenzoyl)-p-phenylenediamine with two different primary aromatic diamines via palladiumcatalyzed aryl amination reaction. The structures of the polymers are characterized by means of FTIR, 1H NMR spectroscopy, and elemental analysis, the results show a ...
http://www.polymer.cn/research/sy_info19467 |
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Crystal Structure and Molecular Packing Behavior of Poly(2,3-diphenyl-1,4-phenylenevinylene) Derivatives Containing Alkyl Side-Chains
关键字：crystal structure, poly(phenylene vinylene), Photoluminescence, polarized luminescence
Phase
behavior and crystal structure of a series of poly(2,3-diphenyl-5-alkyl-p-phenylene vinylene)
(denoted as DPn-PPV, where n represents the carbon number of the
alkyl side-chain, n = 6, 8, 10, 12)
were studied using differential scanning calorimetry, one- and two-dimensional
(1D and 2D) wide angle X-ray diffraction (WAXD), and selected area electron
diffraction (SAED). The experimental resul...
http://www.polymer.cn/research/sy_info16333 |
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Morphology of Poly (lactic acid) Scaffolds Fabricat by a Modified Solvent Casting/Porogen Leaching Method
关键字： Morphology, Porous scaffold, Porogen leaching, Poly(lactic acid)
Solvent casting/particulate leaching (SC/PL) is most commonly used for fabricating micro-porous and macro-porous polymer scaffolds. The advantage of this method is that the process is easy to carry out and easy to control&...
http://www.polymer.cn/research/sy_info15216 |
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Morphology of Poly (lactic acid) Scaffolds Fabricat by a Modified Solvent Casting/Porogen Leaching Method
关键字： Morphology, Porous scaffold, Porogen leaching, Poly(lactic acid)
Solvent casting/particulate leaching (SC/PL) is most commonly used for fabricating micro-porous and macro-porous polymer scaffolds. The advantage of this method is that the process is easy to carry out and easy to control&...
http://www.polymer.cn/research/sy_info15215 |
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Preparation of Drug-Ioaded Porous Poly-L-Iactide Microspheres Using Compressed C02 Antisolvent Process
关键字：Compressed C02 , Poly-L-Iactide, Porous microspheres, Pulmonary drug delivery
By virtue of excellent aerodynamic properties, porous microspheres (PMs) have been considered as an effective inhalable drug carrier. Compared with traditional methods,supercritical C02 fluid technologies have shown great advantages&nbs...
http://www.polymer.cn/research/sy_info15210 |
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