The Importance of a Direct in Situ Evaluation of an Amphiphilic Diblock Copolymer Monolayer. The Similarity and Difference between Its Nanostructures on Water and on Solid Substrates Examined by X-ray Reflectometry and Atomic Force Microscopy†

Langmuir ◽  
1999 ◽  
Vol 15 (12) ◽  
pp. 4295-4301 ◽  
Author(s):  
Keitaro Kago ◽  
Hideki Matsuoka ◽  
Ryuji Yoshitome ◽  
Emiko Mouri ◽  
Hitoshi Yamaoka
Keyword(s):  
Atomic Force Microscopy ◽  
Diblock Copolymer ◽  
Amphiphilic Diblock Copolymer ◽  
X Ray ◽  
Force Microscopy ◽  
Atomic Force ◽  
Solid Substrates ◽  
Similarity And Difference

scholarly journals Mechanistic Insights into Diblock Copolymer Nanoparticle–Crystal Interactions Revealed via in Situ Atomic Force Microscopy

2018 ◽  
Vol 140 (25) ◽  
pp. 7936-7945 ◽  
Author(s):  
Coit T. Hendley ◽  
Lee A. Fielding ◽  
Elizabeth R. Jones ◽  
Anthony J. Ryan ◽  
Steven P. Armes ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Diblock Copolymer ◽  
Force Microscopy ◽  
Atomic Force

Annealing effects on the electrical conductivity of polymerized liquid crystalline 3,4-ethylenedioxythiophene derivatives

e-Polymers ◽  
2006 ◽  
Vol 6 (1) ◽  
Author(s):  
Noelle Wrubbel ◽  
Helmut Ritter ◽  
Knud Reuter ◽  
Alexander Karbach ◽  
Doris Drechsler
Keyword(s):  
Electrical Conductivity ◽  
Atomic Force Microscopy ◽  
Liquid Crystal ◽  
Liquid Crystalline ◽  
Electrically Conductive ◽  
X Ray ◽  
Force Microscopy ◽  
Atomic Force ◽  
Annealing Effects

Abstract3,4-Ethylenedioxythiophene derivatives with aromatic, in most cases mesogenic, side groups were synthesized and their liquid crystal behaviour was characterized. These monomers were polymerized oxidatively to charged, electrically conductive polythiophenes. X-ray and atomic force microscopy studies were performed. Films of theses polythiophenes achieved via in situ polymerization were prone to a significant increase of the conductivity by annealing.

Integrated atomic force microscopy and x-ray irradiation for in situ characterization of radiation-induced processes

2021 ◽  
Vol 92 (11) ◽  
pp. 113701
Author(s):  
Shawn L. Riechers ◽  
Nikolai Petrik ◽  
John S. Loring ◽  
Mark K. Murphy ◽  
Carolyn I. Pearce ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
In Situ Characterization ◽  
X Ray ◽  
Force Microscopy ◽  
Atomic Force ◽  
Radiation Induced

Hydrolysis of the Nafion® precursor studied by X-ray scattering and in-situ atomic force microscopy

e-Polymers ◽  
2001 ◽  
Vol 1 (1) ◽  
Author(s):  
James A. Elliott ◽  
Paul J. James ◽  
Terence J. McMaster ◽  
John M. Newton ◽  
Alice M. S. Elliott ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Wide Angle ◽  
Ionic Clusters ◽  
X Ray ◽  
Force Microscopy ◽  
X Ray Scattering ◽  
Atomic Force ◽  
Hydrolysis Of ◽  
Ray Scattering

AbstractThe hydrolysis of Nafion® † precursor material to a perfluorosulfonate ion exchange membrane has been studied in situ at the surface of a sample using atomic force microscopy (AFM), and in the bulk using a combination of small and wide-angle X-ray scattering. The AFM results show that there is a rapid and significant change in the surface morphology of the sample during the first 12 min after the introduction of aqueous hydroxyl ions, provided that an appropriate swelling agent is used. After this point there is little change in surface morphology, although bulk swelling of the sample continues. The wide-angle X-ray scattering results indicate a significant drop in the degree of crystallinity of fluorocarbon matrix from 14±1% to 7±1% on hydrolysis, as a result of the bulk structural reordering necessary to accommodate the formation of ionic clusters. Ionic clustering is confirmed by the appearance of a characteristic small-angle X-ray peak. However, the peak forms towards the end of the hydrolysis process, and subsequently coarsens, suggesting that the formation of ionic clusters is a slow process compared to the rate of hydrolysis. It is confirmed that an appropriate water/solvent mixture is necessary to achieve an efficient conversion of precursor to membrane. AFM images of the precursor surface, when water alone is used, show no signs of structural change.

scholarly journals Bicontinuous Gyroid Phase of a Water-Swollen Wedge-Shaped Amphiphile: Studies with In-Situ Grazing-Incidence X-ray Scattering and Atomic Force Microscopy

Materials ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 2892
Author(s):  
Kseniia N. Grafskaia ◽  
Azaliia F. Akhkiamova ◽  
Dmitry V. Vashurkin ◽  
Denis S. Kotlyarskiy ◽  
Diego Pontoni ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Environmental Conditions ◽  
Grazing Incidence ◽  
X Ray ◽  
Force Microscopy ◽  
X Ray Scattering ◽  
Atomic Force ◽  
Double Gyroid ◽  
Ray Scattering

We report on formation of a bicontinuous double gyroid phase by a wedge-shaped amphiphilic mesogen, pyridinium 4′-[3″,4″,5″-tris-(octyloxy)benzoyloxy]azobenzene-4-sulfonate. It is found that this compound can self-organize in zeolite-like structures adaptive to environmental conditions (e.g., temperature, humidity, solvent vapors). Depending on the type of the phase, the structure contains 1D, 2D, or 3D networks of nanometer-sized ion channels. Of particular interest are bicontinuous phases, such as the double gyroid phase, as they hold promise for applications in separation and energy. Specially designed environmental cells compatible with grazing-incidence X-ray scattering and atomic force microscopy enable simultaneous measurements of structural parameters/morphology during vapor-annealing treatment at different temperatures. Such in-situ approach allows finding the environmental conditions at which the double gyroid phase can be formed and provide insights on the supramolecular structure of thin films at different spatial levels.

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