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Dewetting and phase behaviors for ultrathin films of polymer blend.
Dynamics of dewetting and phase separation in ultrathin films (thickness is ca. one radius of gyration, ~ 1 Rg) of poly(methyl methacrylate) (PMMA) and poly(styreneran-acrylonitrile) (SAN) blends on Si substrate has been studied by in situ atomic force microscopy (AFM). In the miscible region, a ‘‘spinodal-like’’ dewetting driven by a composition fluctuation recently predic...
http://www.polymer.cnt//ss/ygliao/publicationsshow_1487.html |
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Imaging of elemental distribution at polymer interfaces for studies of adhesion.
The adhesion and fracture of styrene-acrylonitrile random copolymer and poly(methyl methacrylate) (PMMA/SAN) laminates were studied. They showed a drastic transition from brittle to ductile on varying the acrylonitrile (AN) content in SAN, with changes in the fracture mode from interfacial failure to cohesive fracture. Energy-filtering transmission electron microscopy (EFTEM) and scanning electron...
http://www.polymer.cnt//ss/ygliao/publicationsshow_1485.html |
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Effects of Polyelectrolyte Complexation on the UCST of Zwitterionic Polymer
L. Chen, Y. Honma, T. Mizutani, D.-J. Liaw, J. P. Gong, and Y. Osada. Effects of Polyelectrolyte Complexation on the UCST of Zwitterionic Polymer. Polymer, 2000，41, 141-147.
http://www.polymer.cnt//ss/chenli/publicationsshow_1052.html |
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Selective modification of two-dimensional MoS2 nanosheets by polymer grafting
关键字：MoS2, polymer grafting, surface modification
As an emerging two-dimensional (2D) nanomaterial, single layer or a few layers of molybdenum disulfide (MoS2) has drawn significant attention in the past decade. In the present work, we report a strategy in direct creating polymer brushes on MoS2 surfaces via S-C bond in the presence of UV light. The modification of MoS2 nanosheets can be achieved bilaterally or homolaterally by performing the U...
http://www.polymer.cn/research/sy_info19579 |
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2-Nitrobenzyl Borate Based Photolabile Linker for Breakable Polymer Vesicles
关键字：2-nitrobenzyl ; borate ; PEG-lipid ; photolabile ; polymer vesicles
Fluorescent photolabile groups undergoing convenient synthesis and fast cleavage are being
explored because of their increasing utility in both synthetic and biological chemistry. Herein,
a model photosensitive poly(ethylene glycol)-lipid of NP-B-PEG with a 2-nitrobenzyl 2-pyridinylmethyl
borate hydrophobic tail is synthesized. The 1 H-NMR and absorption spectra analysis
of NP-B-PEG ...
http://www.polymer.cn/research/sy_info19443 |
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The photodimerization characteristics of anthracene pendants within amphiphilic polymer micelles in aqueous solution
关键字：photodimerization,amphiphilic polymer micelles
An amphiphilic polymer with anthracene pendants of PEO-b-PAM has
been applied to comprehensively investigate the photodimerization
characteristics of anthracene in aqueous solution upon various
selected narrow band of light irradiations in the UV-vis-NIR region.
http://www.polymer.cn/research/sy_info19436 |
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Thermo-responsive photoluminescent polymer brushes device as a platform for selective detection of Cr(VI)
关键字：Thermo-responsive, Photoluminescence, Polymer brushes
In this work, we first report a thermo-responsive photoluminescent polymer brushes device as a platform
for the selective and sensitive detection of Cr(VI). Positively charged fluorescent molecules of a quaternary
ammonium tetraphenylethylene derivative (d-TPE) are immobilized in the thermo-responsive polymer
brushes of p(NIPAM-co-AAc) by Coulombic force, which leads to the observation of an immob...
http://www.polymer.cn/research/sy_info19420 |
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Catechol-functionalized microporous organic polymer as supported media for Pd nanoparticles and its high catalytic activity
关键字：microporous organic polymer
We report a new hydroxyl functionalized microporous organic polymer (MOPOH) based on the polymerization of catechol with terephthalaldehyde using phenolic resin-inspired chemistry. This catechol-decorated material, with surface area of 874 m2 g?1 and micro, mesopores, facilitates the immobilization and dispersion of Pd nanoparticles (NPs) on the polymer matrix. The surface area of t...
http://www.polymer.cn/research/sy_info19394 |
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Simple Method to Isolate Single Polymer Chains for the Direct Measurement of the Desorption Force
关键字：Isolate Single Polymer Chains
We propose a simple method to isolate polymer chains individually at the quartz surface by utilizing the defects in the self-assembled monolayers of organosilane. This method allows us to measure the desorption force of a single polyelectrolyte chain from a substrate directly.
http://www.polymer.cn/research/sy_info19244 |
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Inherent Stretching Elasticity of a Single Polymer Chain with a Carbon-Carbon Backbone
关键字：Elasticity, Single Polymer Chain
We study the single chain elasticities of three kinds
of neutral polymers with carbon-carbon (C-C) backbone by AFM-based single
molecule force spectroscopy (SMFS) in a nonpolar solvent (octane), aiming at
measuring the inherent chain elasticity of the very important class of
polymers. The finding that the single chain elasticities of all the three
polymers in octane are virtually identical in...
http://www.polymer.cn/research/sy_info19126 |
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