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Use of electrospinning to directly fabricate three- dimensional nanofiber stacks of cellulose acetate under high relative humidity condition
Unique structure-controllable three-dimensional (3D) nanofiber stacks of cellulose acetate (CA) were fabricated successfully by simply increasing relative humidity (RH) during the electrospinning process. It is found that once the RH exceeding 60 %, 3D flocculent nanofiber stacks would grow on the flat plate collector toward the needle tip without using special assisting apparatus or preparing spe...
http://www.polymer.cnt//ss/yuhouyong/publicationsshow_10515.html |
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Facile extraction of thermally stable cellulose nanocrystals with a high yield of 93% through hydrochloric acid hydrolysis under hydrothermal conditions
A facile approach for extracting cellulose nanocrystals (CNCs) was presented through hydrochloric acid hydrolysis of cellulose raw materials under hydrothermal conditions. The influences of preparation parameters, such as reaction time, reaction temperature, and acid-to-cellulose raw material ratio, and different neutralization methods on the yield, microstructure and properties w...
http://www.polymer.cnt//ss/yuhouyong/publicationsshow_10494.html |
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[J Mater Chem A]Indacenodithiophene: A Promising Building Block for High Performance Polymer Solar Cells
Harvesting energy directly from sunlight using photovoltaic technology has become an essential component of future global energy production. Although silicon-based inorganic materials have still played a dominant role in the market, problems for inorganic materials-based solar cells mainly lie in (1) high cost of production and technical difficulties in the fabrication of large-ar...
http://www.polymer.cnt//ss/gujunwei/publicationsshow_10483.html |
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The Hierarchical Structure of Water-Assisted Injection Molded High Density Polyethylene: Small Angle X-ray Scattering Study
Journal of Applied Polymer Science，2012，125（3）：2297~2303
High density polyethylene (HDPE) was molded by a new polymer processing method, that is, water-assisted injection molding (WAIM), and its hierarchical structure was studied by two-dimensional small angle X-ray scattering (SAXS). For comparison, the hierarchical structure of HDPE molded by conventional...
http://www.polymer.cnt//ss/liuxianhu/publicationsshow_10433.html |
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(ACS Sustain. Chem. Eng.) Hexahydro-s-triazine: A Trial for Acid-Degradable Epoxy Resins with High Performance
Hexahydro-s-triazine (HT) derivatives are acidsensitive compounds. 4,4′,4″-(1,3,5-Hexahydro-s-triazine-1,3,5-triyl) tris(N-(2-aminoethyl) benzamide) (HT-A) bearing three amino groups was synthesized as a curing agent to prepare the acid-degradable epoxy resin. The chemical structures of HT-A and its precursor were confirmed by 1H NMR and 13C NMR. The synthesized HT-A, as well as the commer...
http://www.polymer.cnt//ss/masongqi/publicationsshow_10430.html |
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32. High-performance conductive materials based on the selective location of carbon black in poly(ether ether ketone)/polyimide matrix
A novel high performance conductive material with excellent comprehensive properties was prepared by melt-blending, and its performances were adjusted by controlling the selective location of carbon black (CB) in poly(ether ether ketone) (PEEK)/thermoplastic polyimide (TPI) matrix. With increasing the CB loadings, the morphology of PEEK/TPI blends changed from sea-island to co-continuous structure...
http://www.polymer.cnt//ss/guanshaowei/publicationsshow_10379.html |
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36. High proton conductivity of sulfonated methoxyphenyl-containing poly(arylene ether ketone) for proton exchange membranes
A series of sulfonated methoxyphenyl-containing poly(arylene ether ketone)s (SMP-PAEKs) were synthesized via polycondensation from 2-(3-methoxy)phenylhydroquinone and other commercial monomers, followed by a postsulfonation approach under mild reaction conditions. Controlled substituted sites and the degree of sulfonation were realized by using various quantities of 2-(3-methoxy)phenylhydroquinone...
http://www.polymer.cnt//ss/guanshaowei/publicationsshow_10375.html |
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High power supercapacitors based on hierarchically porous sheet-like nanocarbons with ionic liquid electrolytes
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http://www.polymer.cnt//ss/weiqingyang/publicationsshow_10325.html |
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Tetra-carbazole substituted spiro[fluorene-9,9‘-xanthene]-based hole-transporting materials with high thermal stability and mobility for efficient OLEDs.
Two spiro[fluorene-9,9′-xanthene]-centered (SFX), tetra-carbazole substituted molecules 2,2′,7,7′-tetrakis(N, N-carbazole)-spiro(fluorene-9,9′-xanthene) (SFX-Cr1) and 2,3′,6,′7-tetrakis(N, N-carbazole)-spiro(fluorene-9,9′-xanthene) (SFX-Cr2) were synthesized, and the effect of the position of carbazole substitutes on bulk properties, such as photophysical and electrochemical properties, t...
http://www.polymer.cnt//ss/luxiaoqing/publicationsshow_10202.html |
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High char yield novolac modified by Si-B-N-C precursor: Thermal stability and structural evolution
In this contribution, novolac modified by CSEB ceramic precursor (B,B,B-tris[(chlorodimethylsilyl)-ethane]borazine, CSEB) was synthesized successfully. The corresponding molecular structure, chemical state and thermal property were characterized by FT-IR, Raman spectra, XPS, NMR and TGA. Meanwhile, DTA/TG/MS test was also performed to track the weight loss and gas evolution of modified novolac d...
http://www.polymer.cnt//ss/yanyi/publicationsshow_10149.html |
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