Topological Polymer Chemistry Enters Surface Science: Linear versus Cyclic Polymer Brushes

2016 ◽  
Vol 128 (50) ◽  
pp. 15812-15817 ◽  
Author(s):  
Giulia Morgese ◽  
Lucca Trachsel ◽  
Matteo Romio ◽  
Mohammad Divandari ◽  
Shivaprakash N. Ramakrishna ◽  
...  
Keyword(s):  
Surface Science ◽  
Polymer Brushes ◽  
Polymer Chemistry ◽  
Cyclic Polymer

scholarly journals Cover Picture: Topological Polymer Chemistry Enters Surface Science: Linear versus Cyclic Polymer Brushes (Angew. Chem. Int. Ed. 50/2016)

2016 ◽  
Vol 55 (50) ◽  
pp. 15445-15445 ◽  
Author(s):  
Giulia Morgese ◽  
Lucca Trachsel ◽  
Matteo Romio ◽  
Mohammad Divandari ◽  
Shivaprakash N. Ramakrishna ◽  
...  
Keyword(s):  
Surface Science ◽  
Polymer Brushes ◽  
Polymer Chemistry ◽  
Cyclic Polymer

scholarly journals Corrigendum: Topological Polymer Chemistry Enters Surface Science: Linear versus Cyclic Polymer Brushes

2017 ◽  
Vol 56 (9) ◽  
pp. 2236-2236 ◽  
Author(s):  
Giulia Morgese ◽  
Lucca Trachsel ◽  
Matteo Romio ◽  
Mohammad Divandari ◽  
Shivaprakash. N. Ramakrishna ◽  
...  
Keyword(s):  
Surface Science ◽  
Polymer Brushes ◽  
Polymer Chemistry ◽  
Cyclic Polymer

Topological Polymer Chemistry Enters Surface Science: Linear versus Cyclic Polymer Brushes

2016 ◽  
Vol 55 (50) ◽  
pp. 15583-15588 ◽  
Author(s):  
Giulia Morgese ◽  
Lucca Trachsel ◽  
Matteo Romio ◽  
Mohammad Divandari ◽  
Shivaprakash N. Ramakrishna ◽  
...  
Keyword(s):  
Surface Science ◽  
Polymer Brushes ◽  
Polymer Chemistry ◽  
Cyclic Polymer

scholarly journals Berichtigung: Topological Polymer Chemistry Enters Surface Science: Linear versus Cyclic Polymer Brushes

2017 ◽  
Vol 129 (9) ◽  
pp. 2272-2272 ◽  
Author(s):  
Giulia Morgese ◽  
Lucca Trachsel ◽  
Matteo Romio ◽  
Mohammad Divandari ◽  
Shivaprakash. N. Ramakrishna ◽  
...  
Keyword(s):  
Surface Science ◽  
Polymer Brushes ◽  
Polymer Chemistry ◽  
Cyclic Polymer

scholarly journals Titelbild: Topological Polymer Chemistry Enters Surface Science: Linear versus Cyclic Polymer Brushes (Angew. Chem. 50/2016)

2016 ◽  
Vol 128 (50) ◽  
pp. 15671-15671 ◽  
Author(s):  
Giulia Morgese ◽  
Lucca Trachsel ◽  
Matteo Romio ◽  
Mohammad Divandari ◽  
Shivaprakash N. Ramakrishna ◽  
...  
Keyword(s):  
Surface Science ◽  
Polymer Brushes ◽  
Polymer Chemistry ◽  
Cyclic Polymer

Surface Density Variation within Cyclic Polymer Brushes Reveals Topology Effects on Their Nanotribological and Biopassive Properties

2018 ◽  
Vol 7 (12) ◽  
pp. 1455-1460 ◽  
Author(s):  
Mohammad Divandari ◽  
Lucca Trachsel ◽  
Wenqing Yan ◽  
Jan-Georg Rosenboom ◽  
Nicholas D. Spencer ◽  
...  
Keyword(s):  
Polymer Brushes ◽  
Surface Density ◽  
Density Variation ◽  
Cyclic Polymer

Coarse-grained Molecular Dynamics Simulation of the Wear Mechanism of Cyclic Polymer Brushes

2020 ◽  
Vol 49 (10) ◽  
pp. 1185-1188
Author(s):  
Zhongmin Liu ◽  
Yusuke Ootani ◽  
Shuichi Uehara ◽  
Jingxiang Xu ◽  
Yang Wang ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulation ◽  
Wear Mechanism ◽  
Polymer Brushes ◽  
Dynamics Simulation ◽  
Coarse Grained ◽  
Cyclic Polymer ◽  
Coarse Grained Molecular Dynamics

Advancing macromolecular hoop construction: recent developments in synthetic cyclic polymer chemistry

2021 ◽  
Vol 12 (7) ◽  
pp. 958-969
Author(s):  
Teng-Wei Wang ◽  
Matthew R. Golder
Keyword(s):  
Ring Expansion ◽  
Ring Closure ◽  
Polymer Chemistry ◽  
Linear Polymers ◽  
Synthetic Methodology ◽  
Cyclic Polymer ◽  
Recent Developments

Synthetic methodology to access cyclic macromolecules continues to develop via two distinct mechanistic classes: ring-expansion of macrocyclic initiators and ring-closure of functionalized linear polymers.

UHV-TEM studies of laser-induced damage

1991 ◽  
Vol 49 ◽  
pp. 632-633
Author(s):  
T.S. Savage ◽  
R. Ai ◽  
D. Dunn ◽  
L.D. Marks
Keyword(s):  
Surface Science ◽  
Rapid Heating ◽  
Local Heating ◽  
Routine Practice ◽  
Transmission Electron ◽  
Northwestern University ◽  
Laser Induced Damage ◽  
Set Up ◽  
Focusing Lens ◽  
Diffusion Of Impurities

The use of lasers for surface annealing, heating and/or damage has become a routine practice in the study of materials. Lasers have been closely looked at as an annealing technique for silicon and other semiconductors. They allow for local heating from a beam which can be focused and tuned to different wavelengths for specific tasks. Pulsed dye lasers allow for short, quick bursts which can allow the sample to be rapidly heated and quenched. This short, rapid heating period may be important for cases where diffusion of impurities or dopants may not be desirable.At Northwestern University, a Candela SLL - 250 pulsed dye laser, with a maximum power of 1 Joule/pulse over 350 - 400 nanoseconds, has been set up in conjunction with a Hitachi UHV-H9000 transmission electron microscope. The laser beam is introduced into the surface science chamber through a series of mirrors, a focusing lens and a six inch quartz window.

Anisotropic Membranes as Substrates for Sem

1976 ◽  
Vol 34 ◽  
pp. 444-445
Author(s):  
Thomas P. Turnbull ◽  
W. F. Bowers
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
High Flow ◽  
Polymer Chemistry ◽  
Surface Porosity ◽  
Transmission Electron ◽  
Pore Texture ◽  
Spongy Layer ◽  
Scanning Electron

Until recently the prime purposes of filters have been to produce clear filtrates or to collect particles from solution and then remove the filter medium and examine the particles by transmission electron microscopy. These filters have not had the best characteristics for scanning electron microscopy due to the size of the pores or the surface topography. Advances in polymer chemistry and membrane technology resulted in membranes whose characteristics make them versatile substrates for many scanning electron microscope applications. These polysulphone type membranes are anisotropic, consisting of a very thin (0.1 to 1.5 μm) dense skin of extremely fine, controlled pore texture upon a much thicker (50 to 250μm), spongy layer of the same polymer. Apparent pore diameters can be controlled in the range of 10 to 40 A. The high flow ultrafilters which we are describing have a surface porosity in the range of 15 to 25 angstrom units (0.0015-0.0025μm).

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