scholarly journals Morphology, Structure, and Enhanced Intramolecular Conduction in Ultralong Conjugated Polymer Brushes

2018 ◽  
Vol 122 (14) ◽  
pp. 7586-7596 ◽  
Author(s):  
Ian A. VonWald ◽  
Mark M. Moog ◽  
Travis W. LaJoie ◽  
Joshua D. Yablonski ◽  
Dean M. DeLongchamp ◽  
...  
Keyword(s):  
Conjugated Polymer ◽  
Polymer Brushes

Initiation and Polymer Density of Conjugated Polymer Brushes

2020 ◽  
Vol 124 (43) ◽  
pp. 9734-9744
Author(s):  
Ian A. VonWald ◽  
S. Gaither Frye ◽  
Mark M. Moog ◽  
Carrie L. Donley ◽  
Frank Tsui ◽  
...  
Keyword(s):  
Conjugated Polymer ◽  
Polymer Brushes ◽  
Polymer Density

Unraveling the nanomechanical properties of surface-grafted conjugated polymer brushes with ladder-like architecture

2020 ◽  
Vol 11 (44) ◽  
pp. 7050-7062 ◽  
Author(s):  
Monika Słowikowska ◽  
Karol Wolski ◽  
Artur J. Wójcik ◽  
Daniel Wesner ◽  
Holger Schönherr ◽  
...  
Keyword(s):  
Tribological Properties ◽  
Conjugated Polymer ◽  
Polymer Brushes ◽  
Grafted Polymer ◽  
Nanomechanical Properties ◽  
Mechanical And Tribological Properties ◽  
Extended Conformation

Surface-grafted polymer brushes with ladder-like architecture enforce extended conformation of the chains affecting their mechanical and tribological properties.

Rapid Electrochemical Reduction of Ni(II) Generates Reactive Monolayers for Conjugated Polymer Brushes in One Step

Langmuir ◽  
2014 ◽  
Vol 30 (34) ◽  
pp. 10465-10470 ◽  
Author(s):  
Anandi Roy ◽  
Jing Gao ◽  
Jenna A. Bilbrey ◽  
N. Eric Huddleston ◽  
Jason Locklin
Keyword(s):  
Electrochemical Reduction ◽  
Conjugated Polymer ◽  
Polymer Brushes ◽  
One Step

scholarly journals Engineering of Spin Injection and Spin Transport in Organic Spin Valves Using π-Conjugated Polymer Brushes

2016 ◽  
Vol 26 (22) ◽  
pp. 3999-4006 ◽  
Author(s):  
Rugang Geng ◽  
Anandi Roy ◽  
Wenbo Zhao ◽  
Ram Chandra Subedi ◽  
Xiaoguang Li ◽  
...  
Keyword(s):  
Conjugated Polymer ◽  
Polymer Brushes ◽  
Spin Transport ◽  
Spin Injection ◽  
Spin Valves

Forces between asymmetric polymer brushes

1990 ◽  
Vol 51 (8) ◽  
pp. 701-707 ◽  
Author(s):  
D.F.K. Shim ◽  
M. E. Cates
Keyword(s):  
Polymer Brushes

Nanostructured Polymer Brushes With Reversibly Changing Properties

2002 ◽  
Vol 727 ◽  
Author(s):  
Denys Usov ◽  
Manfred Stamm ◽  
Sergiy Minko ◽  
Christian Froeck ◽  
Andreas Scholl ◽  
...  
Keyword(s):  
Polymer Brushes ◽  
Phase Segregation ◽  
Water Contact ◽  
Angle Measurements ◽  
Nanostructured Polymer ◽  
Contact Angle Measurements ◽  
Vertical Segregation ◽  
Oxygen Plasma Etching ◽  
Grafting From ◽  
Photoemission Electron

AbstractWe investigated the interplay between different mechanisms of the lateral and vertical segregation in the synthesized via “grafting from” approach symmetric A/B (where A and B are poly(styrene-co-2,3,4,5,6-pentafluorostyrene) and poly(methylmethacrylate), respectively) polymer brushes upon exposure to different solvents. We used X-ray photoemission electron spectroscopy and microscopy (X-PEEM), AFM, water contact angle measurements, and oxygen plasma etching to study morphology of the brushes. The ripple morphology after toluene (nonselective solvent) revealed elongated lamellar-like domains of A and B polymers alternating across the surface. The dimple-A morphology consisting of round clusters of the polymer A was observed after acetone (selective solvent for B). The top layer was enriched with the polymer B showing that the brush underwent both the lateral and vertical phase segregation. A qualitative agreement with predictions of SCF theory was found.

Scanning-tunneling spectroscopy on conjugated polymer films

2003 ◽  
Vol 771 ◽  
Author(s):  
M. Kemerink ◽  
S.F. Alvarado ◽  
P.M. Koenraad ◽  
R.A.J. Janssen ◽  
H.W.M. Salemink ◽  
...  
Keyword(s):  
Polymer Films ◽  
Conjugated Polymer ◽  
Three Dimensional ◽  
Field Enhancement ◽  
Direct Consequence ◽  
Scanning Tunneling Spectroscopy ◽  
Tunneling Spectroscopy ◽  
Band Alignment ◽  
Scanning Tunneling ◽  
Order Of Magnitude

AbstractScanning-tunneling spectroscopy experiments have been performed on conjugated polymer films and have been compared to a three-dimensional numerical model for charge injection and transport. It is found that field enhancement near the tip apex leads to significant changes in the injected current, which can amount to more than an order of magnitude, and can even change the polarity of the dominant charge carrier. As a direct consequence, the single-particle band gap and band alignment of the organic material can be directly obtained from tip height-voltage (z-V) curves, provided that the tip has a sufficiently sharp apex.

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