Ionic liquid-induced nanoporous structures of polymer films

2020 ◽  
Vol 56 (20) ◽  
pp. 3054-3057 ◽  
Author(s):  
Xiao Gong ◽  
Jixi Zhang ◽  
Shaohua Jiang
Keyword(s):  
Thin Films ◽  
Ionic Liquid ◽  
Aqueous Solutions ◽  
Polymer Films ◽  
Polymer Thin Films ◽  
Nanoporous Structures

Nanoporous polymer thin films can be fabricated using strong polyelectrolyte pairs in ionic liquid aqueous solutions.

Behavior of Polymer Thin Films Deposed on Bronze Surfaces at Cavitation Erosion

2018 ◽  
Vol 69 (10) ◽  
pp. 2021-2927
Author(s):  
Iosif Lazar ◽  
Ilare Bordeasu ◽  
Adrian Circiumaru ◽  
Ion Mitelea ◽  
Liviu Sebastian Bocii
Keyword(s):  
Thin Films ◽  
Polymer Films ◽  
Cavitation Erosion ◽  
Polymer Thin Films ◽  
Metallic Surfaces ◽  
New Techniques ◽  
The Poor ◽  
Hydraulic Machines

One of the most actual problems regarding reparation and reconditioning of ships propellers surfaces or of some parts of hydraulic machines (turbines, pumps) is that of the erosion produced by cavitation, both from technical difficulties and costs. That is why researchers and builders are searching for new cheap solutions mainly regarding these surfaces protection. The present study concerns the analysis of polymer thin films meant to protect surfaces of bronze parts exposed to cavitation. The bronze is a material frequently used to cast maritime or fluvial vessels propellers. The test, conducted at Timisoara Polytechnic University Cavitation Laboratory on standard vibrating equipment, showed the poor resistance of polymer films and revealed the necessity of continuation the studies especially in finding new techniques in order to increase the polymer films adhesion to the metallic surfaces that had to be protected.

Rapid template-free synthesis of nanostructured conducting polymer films by tuning their morphology using hyperbranched polymer additives

Nanoscale ◽  
2019 ◽  
Vol 11 (43) ◽  
pp. 20977-20986 ◽  
Author(s):  
Chun-Fu Lu ◽  
Song-Fu Liao ◽  
Ke-Hsin Wang ◽  
Chin-Ti Chen ◽  
Chi-Yang Chao ◽  
...  
Keyword(s):  
Thin Films ◽  
Surface Morphology ◽  
Conducting Polymer ◽  
Polymer Films ◽  
Hyperbranched Polymer ◽  
Polymer Thin Films ◽  
Polymer Additives ◽  
Template Free ◽  
Conducting Polymer Films

Surface morphology of conducting polymer thin films can be tuned into a porous continuous nanofibril network by employing hyperbranched polymer additives.

scholarly journals Ferroelectric Polymer Thin Films for Organic Electronics

2015 ◽  
Vol 2015 ◽  
pp. 1-14 ◽  
Author(s):  
Manfang Mai ◽  
Shanming Ke ◽  
Peng Lin ◽  
Xierong Zeng
Keyword(s):  
Thin Films ◽  
Polymer Films ◽  
Flexible Electronics ◽  
Polyvinylidene Fluoride ◽  
Ferroelectric Properties ◽  
Polymer Thin Films ◽  
Electronics Industry ◽  
Ferroelectric Polymer ◽  
Switching Models ◽  
Future Work

The considerable investigations of ferroelectric polymer thin films have explored new functional devices for flexible electronics industry. Polyvinylidene fluoride (PVDF) and its copolymer with trifluoroethylene (TrFE) are the most commonly used polymer ferroelectric due to their well-defined ferroelectric properties and ease of fabrication into thin films. In this study, we review the recent advances of thin ferroelectric polymer films for organic electronic applications. Initially the properties of ferroelectric polymer and fabrication methods of thin films are briefly described. Then the theoretical polarization switching models for ferroelectric polymer films are summarized and the switching mechanisms are discussed. Lastly the emerging ferroelectric devices based on P(VDF-TrFE) films are addressed. Conclusions are drawn regarding future work on materials and devices.

scholarly journals Identification of the local electrical properties of crystalline and amorphous domains in electrochemically doped conjugated polymer thin films

RSC Advances ◽  
2020 ◽  
Vol 10 (36) ◽  
pp. 21454-21463 ◽  
Author(s):  
Hemanth Maddali ◽  
Krystal L. House ◽  
Thomas J. Emge ◽  
Deirdre M. O'Carroll
Keyword(s):  
Thin Films ◽  
Electrical Properties ◽  
Polymer Films ◽  
Conjugated Polymer ◽  
Polymer Thin Films ◽  
Local Domain ◽  
Electrochemical Doping ◽  
Crystalline Domains

The effects of electrochemical doping on the local domain properties of conjugated polymer films are investigated. Nanoscale crystalline domains are most affected by doping and have a higher degree of doping compared to amorphous domains.

Endgroup and Sidechain Functionalization of Surface-Initiated ROMP Thin Films: Progress Towards ROMP-Based Molecular Wires

2018 ◽  
Author(s):  
Nicholas Marshall
Keyword(s):  
Thin Films ◽  
Contact Angle ◽  
Cyclic Voltammetry ◽  
Polymer Films ◽  
Conjugated Polymer ◽  
Ring Opening ◽  
Molecular Wires ◽  
Metathesis Polymerization ◽  
Cross Metathesis ◽  
Active Ester

A set of experiments in surface-initiated ring-opening metathesis polymerization, including end-functionalization of growing brushes and contact angle/cyclic voltammetry measurements. We report preparation and CV of two different conjugated polymer films, and several endgroup and sidechain functionalization experiments using cross-metathesis and active ester substitution.<br>

scholarly journals Molecular aggregation states of crystalline fluorinated polymer thin films

2008 ◽  
Vol 64 (a1) ◽  
pp. C560-C560
Author(s):  
K. Honda ◽  
M. Morita ◽  
S. Sasaki ◽  
O. Sakata ◽  
A. Takahara
Keyword(s):  
Thin Films ◽  
Polymer Thin Films ◽  
Molecular Aggregation ◽  
Fluorinated Polymer
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