scholarly journals Polymer Brushes Immersed in Two-Component Solvents with Pure Volume Exclusion: Effect of Solvent Molecular Shape

ACS Omega ◽  
2019 ◽  
Vol 4 (7) ◽  
pp. 12927-12937
Author(s):  
Congcong Li ◽  
Tiancai Zhang ◽  
Yingzi Yang ◽  
Ping Tang ◽  
Feng Qiu
Keyword(s):  
Polymer Brushes ◽  
Molecular Shape ◽  
Effect Of Solvent ◽  
Two Component ◽  
Exclusion Effect

Lubrication mechanism of concentrated polymer brushes in solvents: effect of solvent viscosity

2012 ◽  
Vol 3 (1) ◽  
pp. 148-153 ◽  
Author(s):  
Akihiro Nomura ◽  
Kohji Ohno ◽  
Takeshi Fukuda ◽  
Takaya Sato ◽  
Yoshinobu Tsujii
Keyword(s):  
Polymer Brushes ◽  
Lubrication Mechanism ◽  
Solvent Viscosity ◽  
Effect Of Solvent

scholarly journals Free energy of alternating two-component polymer brushes on cylindrical templates

2011 ◽  
Vol 135 (24) ◽  
pp. 244902 ◽  
Author(s):  
William L. Miller ◽  
Behnaz Bozorgui ◽  
Katherine Klymko ◽  
Angelo Cacciuto
Keyword(s):  
Free Energy ◽  
Polymer Brushes ◽  
Two Component

Lubrication Mechanism of Concentrated Polymer Brushes in Solvents: Effect of Solvent Quality and Thereby Swelling State

2011 ◽  
Vol 44 (12) ◽  
pp. 5013-5019 ◽  
Author(s):  
Akihiro Nomura ◽  
Kenji Okayasu ◽  
Kohji Ohno ◽  
Takeshi Fukuda ◽  
Yoshinobu Tsujii
Keyword(s):  
Polymer Brushes ◽  
Lubrication Mechanism ◽  
Effect Of Solvent ◽  
Solvent Quality

Nonfouling Polymer Brushes via Surface-Initiated, Two-Component Atom Transfer Radical Polymerization

2008 ◽  
Vol 41 (12) ◽  
pp. 4216-4219 ◽  
Author(s):  
Matthew T. Bernards ◽  
Gang Cheng ◽  
Zheng Zhang ◽  
Shengfu Chen ◽  
Shaoyi Jiang
Keyword(s):  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Polymer Brushes ◽  
Atom Transfer ◽  
Two Component

Effect of Solvent Condition on the Dynamic Response of Polymer Brushes

1998 ◽  
Vol 543 ◽  
Author(s):  
S. M. Kilbey ◽  
P. Schorr ◽  
M. Tirrell
Keyword(s):  
Polymer Brushes ◽  
Surface Forces ◽  
Polymer Chains ◽  
Lateral Motion ◽  
Dilute Solution ◽  
Surface Forces Apparatus ◽  
Effect Of Solvent ◽  
Preferential Adsorption ◽  
Frictional Forces ◽  
Theta Solvent

AbstractThe frictional response of two opposing polymer brushes subjected to steady shear was studied as a function of solvent condition and degree of compression using the Surface Forces Apparatus (SFA). The brushes were made by preferential adsorption of polyvinylpryridinepolystyrene (PVP-PS) block copolymers adsorbed onto atomically smooth surfaces from a dilute solution of toluene. Extremely parallel lateral motion was imparted to one surface and the response was detected at the opposing brush-covered surface. When the brushes were bathed in a good solvent, it was necessary to strongly compress the layers in order to observe frictional forces transmitted between the surfaces. However, when the solvent was changed to a near-theta solvent, large frictional forces were measured at weaker compressions. The onset of these frictional forces occurred at distances comparable to the distance at which the opposing layers contact one another and rapidly increase as the brushes are compressed. Arguments are advanced that this behavior is attributable to frictional interactions between the polymer chains and the solvent.

Size-Exclusion Effect and Protein Repellency of Concentrated Polymer Brushes Prepared by Surface-Initiated Living Radical Polymerization

2007 ◽  
Vol 248 (1) ◽  
pp. 189-198 ◽  
Author(s):  
Chiaki Yoshikawa ◽  
Atsushi Goto ◽  
Norio Ishizuka ◽  
Kazuki Nakanishi ◽  
Akio Kishida ◽  
...  
Keyword(s):  
Radical Polymerization ◽  
Polymer Brushes ◽  
Living Radical Polymerization ◽  
Size Exclusion ◽  
Size Exclusion Effect ◽  
Exclusion Effect

Spectroscopic Observations of Visual Double Stars

1965 ◽  
Vol 5 ◽  
pp. 109-111
Author(s):  
Frederick R. West
Keyword(s):  
Radial Velocity ◽  
High Dispersion ◽  
Velocity Difference ◽  
Spectrograph Slit ◽  
Spectroscopic Observations ◽  
Double Stars ◽  
Visual Double Stars ◽  
Relative Orbit ◽  
Two Component ◽  
Star Images

There are certain visual double stars which, when close to a node of their relative orbit, should have enough radial velocity difference (10-20 km/s) that the spectra of the two component stars will appear resolved on high-dispersion spectrograms (5 Å/mm or less) obtainable by use of modern coudé and solar spectrographs on bright stars. Both star images are then recorded simultaneously on the spectrograph slit, so that two stellar components will appear on each spectrogram.

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