Amine-functionalized nanoporous thin films from a poly(ethylene oxide)-block-polystyrene diblock copolymer bearing a photocleavable o-nitrobenzyl carbamate junction

Soft Matter ◽  
2012 ◽  
Vol 8 (16) ◽  
pp. 4486 ◽  
Author(s):  
Cé Guinto Gamys ◽  
Jean-Marc Schumers ◽  
Alexandru Vlad ◽  
Charles-André Fustin ◽  
Jean-François Gohy
Nanoscale ◽  
2021 ◽  
Author(s):  
Simon Jakob Schaper ◽  
Franziska C. Löhrer ◽  
Senlin Xia ◽  
Christina Geiger ◽  
Matthias Schwartzkopf ◽  
...  

Copper (Cu) as excellent electrical conductor and the amphiphilic diblock copolymer polystyrene-block-poly(ethylene oxide) (PS b PEO) as polymer electrolyte and ionic conductor can be combined with an active material in...


Langmuir ◽  
2017 ◽  
Vol 33 (36) ◽  
pp. 8856-8868 ◽  
Author(s):  
M. Dobies ◽  
M. Makrocka-Rydzyk ◽  
J. Jenczyk ◽  
M. Jarek ◽  
R. J. Spontak ◽  
...  

2019 ◽  
Author(s):  
Paul Markus ◽  
Daniel E Martínez-Tong ◽  
Georg Papastavrou ◽  
Angel Alegria

<div><div><div><p>The effect of humidity on the ionic transport in the amorphous phase of poly(ethylene oxide) thin films has been studied by via local dielectric spectroscopy. We explored a controlled humidity range between 15 %RH and 50 %RH. AFM-based local dielectric imaging allowed to obtain simultaneously the thin films topography and the corresponding dielectric contrast maps. No humidity effect on the film topography was observed whereas large variation of the dielectric signal could be detected. In addition, we observed a clear dielectric contrast in different locations on the thin film surface. At selected regions with high contrast in the dielectric maps, we performed nanoDielectric Spectroscopy (nDS) measurements covering the frequency range from 10 Hz to 100 kHz. By modeling these spectroscopy results, we quantified the conductivity of the amorphous phase of the semicrystalline poly(ethylene oxide) films. The crystalline fraction of the PEO thin films was extracted and found to be about 36%, independently of humidity. However, the average conductivity increased drastically from 2×10-10 to 5×10-9 S/cm, by changing environmental humidity in the explore %RH range.</p></div></div></div>


2018 ◽  
Vol 51 (5) ◽  
pp. 1626-1635 ◽  
Author(s):  
Binghua Wang ◽  
Shaohua Tang ◽  
Yan Wang ◽  
Changyu Shen ◽  
Renate Reiter ◽  
...  

RSC Advances ◽  
2018 ◽  
Vol 8 (23) ◽  
pp. 12752-12759
Author(s):  
HuaQing Liang ◽  
QiHua Zhou ◽  
YongJiang Long ◽  
WanChu Wei ◽  
Shuo Feng ◽  
...  

Herein, a novel amphiphilic diblock copolymer consisting of isotactic polystyrene and 1,4-trans-polybutadiene-graft-poly(ethylene oxide) was synthesized and its self-assembly behavior was investigated.


Soft Matter ◽  
2020 ◽  
Vol 16 (13) ◽  
pp. 3203-3208 ◽  
Author(s):  
Paul Markus ◽  
Daniel E. Martínez-Tong ◽  
Georg Papastavrou ◽  
Angel Alegria

The laterally-resolved conductivity of PEO thin films increases with relative humidity, as determined by local dielectric spectroscopy: an AFM-based electrical technique.


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