| |
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 |
| |
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 |
| |
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 |
| |
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 |
| |
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 |
| |
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 |
| |
The new worldview of nonlinear polymer theology: its phenomenological foundation and significance for polymer processing
we will review the discoveries in the field of nonlinear theology of entangled polymers since 2006 when it was first reported that synthetic polymers could undergo inhomogeneous shear beyond the stress overshoot during startup shear and show non-quiescent relaxation after a large step strain [1-2] In the past decade, we have attempted to develop a realistic understanding to address the follo...
http://www.polymer.cn/research/sy_info18333 |
| |
On the elasticity of polymer fluids
关键字：fluid elasticity polymer fluids die swell inlet pressure drop References
It was showed in literatures that polymer fluids (as melts or solutions) which have similar viscosity but different elasticity, their theological and processing behaviors were widely divergent.The measure method and norm for fluid elasticity are not a circumstance to fluid viscosity. The physical quantities to describe of fluid elasticity in literatures were various [1-2] There are distinguishe...
http://www.polymer.cn/research/sy_info18323 |
| |
Highly Efficient 2D-Conjugated Benzodithiophene-Based Photovoltaic Polymer with Linear Alkylthio Side Chain
关键字：BDT, Polymer solar cells, 9.5
Starting from two e?cient photovoltaic polymers, a novel two-dimensional conjugated BDT-based polymer, PBDT-TS1 was designed, synthesized by introducing linear side chain and a high PCE of 9.48% was achieved by PBDT-TS1:PC71BM-based PSC evaluating with the simple conventional device. More importantly, due to the high starting point acquired in simple conventional...
http://www.polymer.cn/research/sy_info18097 |
| |
How the linkage positions affect the performance of bulk-heterojunction polymer solar cells
关键字：bulk-heterojunction polymer solar cells, linkage positions
Two new alternating copolymers. PCT-10,13-BPz (P1) and PCT-2,7-BPz (P2), which were constructed from the same monomers and only different in the connecting points, were synthesized via Suzuki coupling reaction. The UV-vis absorptions, thermal stability, energy levels, field-effect carrier mobility and photovoltaic characteristics of the two copolymers were systematically evaluated to understand th...
http://www.polymer.cn/research/sy_info17363 |
| |