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Characterization and in vitro degradation of poly(octadecanoic anhydride)
Poly(octadecanoic anhydride) (POA) has been
prepared by melt polycondensation of octadecanoic diacid.
POA was characterized by Fourier-transform infrared
spectroscopy (FTIR), differential scanning calorimetry
(DSC) and wide angle X-ray diffraction (WAXD). The
results of in vitro degradation and SEM micrographs show
that the erosion process of POA is neither bulk nor perfect
surface erosion ...
http://www.polymer.cn//ss/dengliandong/publicationsshow_1384.html |
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Incubation time to crazing in stressed poly(methyl methacrylate)
Crazing is usually a precursor of the brittle fracture of glassy polymers. In this paper, an optical technique is presented to quantify the crazing dominated creep damage that occurs on a stressed transparent glassy polymeric sheet of polymethyl methacrylate (PMMA). The specimens, with various sections, are loaded for a predefined period of time under a constant load at room temperature, and the a...
http://www.polymer.cn//ss/luowenbo/publicationsshow_1347.html |
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Creep behavior of poly(methyl methacrylate) with growing damage
A simple optical technique is used to quantify creep crazing damage in a uniaxially stressed transparent glassy polymeric sheet of polymethyl
methacrylate (PMMA) at room temperature. The areal craze densities are taken as a measure of the crazing damage. It is shown that the crazing
damage increases with nominal applied stress and creep time. The crazing initiation time and the crazing damage ev...
http://www.polymer.cn//ss/luowenbo/publicationsshow_1344.html |
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Effect of In Vitro Degradation of Poly(D,L-lactide)/b-tricalcium
Effect of In Vitro Degradation of Poly(D,L-lactide)/b-tricalcium
Composite on Its Shape-Memory Properties
http://www.polymer.cn//ss/shaobingzhou/publicationsshow_1326.html |
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Shape memory properties of poly(D,L-lactide)/hydroxyapatite composites
Shape memory properties of poly(D,L-lactide)/hydroxyapatite composites
http://www.polymer.cn//ss/shaobingzhou/publicationsshow_1324.html |
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Hydrogen Bonding Interaction of Poly(D,L-Lactide)/hydroxyapatite
Hydrogen Bonding Interaction of Poly(D,L-Lactide)/hydroxyapatite
http://www.polymer.cn//ss/shaobingzhou/publicationsshow_1323.html |
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Poly(ferrocenylsilane)-block-polylactide block copolymers
A PFS/PLA block copolymer was studied to probe the effect of strong surface interactions on pattern formation in PFS block copolymer thin films. Successful synthesis of PFS-b-PLA was demonstrated. Thin films of these polymers show phase separation to form PFS microdomains in a PLA matrix, and ultrathin films (< 5 nm) formed SINPATs on silicon and mica. The SINPATs consisted of strongly surface-...
http://www.polymer.cn//ss/zhongzhiyuan/publicationsshow_1014.html |
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Biodegradation of jute/poly(lactic acid) composites by fungi
关键字：jute, poly(lactic acid), composites, biodegradation, fungi
Jute/poly(lactic acid) (PLA) composites were firstly prepared by extrusion and injection molding. Then the composites were exposed to a fungi environment for 28 d which consisted with five fungi according to the American Society of Testing Materials (ASTM) standards. Weight loss, morphology and mechanical properties of the samples with different infected days were measured. Gel permeation chroma...
http://www.polymer.cn/research/sy_info19581 |
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Electrochromic Poly(DNTD)/WO3 Nanocomposite Films via Electropolymerization
关键字：Electrochromic, Poly(DNTD)/WO3 Nanocomposite, Electropolymerization
Poly(DNTD,N,N′-di[p-phenylamino(phenyl)]-1,4,5,8-naphthalene tetracarboxylic diimide) and its nanocomposite film incorporated with WO3 nanoparticles was prepared by a facile electropolymerization method on an indium in oxide (ITO) coated glass slide from the DNTD monomer and WO3 nanoparticles suspended methylene chloride solution. The morphology and micros...
http://www.polymer.cn/research/sy_info19450 |
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Temperature-controlled responsive Poly(vinylidene fluoride)PVDF membranes by grafting poly(N-isopro -pylacrylamide) on them
1. Introduction
Poly(vinylidene fluoride) (PVDF), owning good heat, corrosion and solvent resistance[l], be
prepared into flat sheet membranes and hollow fiber membranes [2], which are widely applied to
various fields such as water purification, organic solvent refining and membrane distillation. So
PVDF membranes, as a kind of functional material, their preferential separation process is of hi...
http://www.polymer.cn/research/sy_info19029 |
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