Towards seamlessly-integrated textile electronics: methods to coat fabrics and fibers with conducting polymers for electronic applications

2017 ◽  
Vol 53 (53) ◽  
pp. 7182-7193 ◽  
Author(s):  
Linden Allison ◽  
Steven Hoxie ◽  
Trisha L. Andrew
Keyword(s):  
Conducting Polymers ◽  
Electronic Components ◽  
Textile Materials ◽  
Intrinsically Conducting Polymers ◽  
Poly Aniline

Traditional textile materials can be transformed into functional electronic components upon being dyed or coated with films of intrinsically conducting polymers, such as poly(aniline), poly(pyrrole) and poly(3,4-ethylenedioxythiophene).

Electrically Conducting Polymers: Science and Technology

MRS Bulletin ◽  
1997 ◽  
Vol 22 (6) ◽  
pp. 16-23 ◽  
Author(s):  
Arthur J. Epstein
Keyword(s):  
Conducting Polymers ◽  
Electromagnetic Interference ◽  
High Strength ◽  
Organic Polymer ◽  
Carbon Powder ◽  
Iron And Steel ◽  
Electrically Conducting ◽  
Carbon Carbon Bond ◽  
Polymer Devices ◽  
Intrinsically Conducting Polymers

For the past 50 years, conventional insulating-polymer systems have increasingly been used as substitutes for structural materials such as wood, ceramics, and metals because of their high strength, light weight, ease of chemical modification/customization, and processability at low temperatures. In 1977 the first intrinsic electrically conducting organic polymer—doped polyacetylene—was reported, spurring interest in “conducting polymers.” Intrinsically conducting polymers are completely different from conducting polymers that are merely a physical mixture of a nonconductive polymer with a conducting material such as metal or carbon powder. Although initially these intrinsically conducting polymers were neither processable nor air-stable, new generations of these materials now are processable into powders, films, and fibers from a wide variety of solvents, and also are airstable. Some forms of these intrinsically conducting polymers can be blended into traditional polymers to form electrically conductive blends. The electrical conductivities of the intrinsically conductingpolymer systems now range from those typical of insulators (<10−10 S/cm (10−10 Ω−1 cm1)) to those typical of semiconductors such as silicon (~10 5 S/cm) to those greater than 10+4 S/cm (nearly that of a good metal such as copper, 5 × 105 S/cm). Applications of these polymers, especially polyanilines, have begun to emerge. These include coatings and blends for electrostatic dissipation and electromagnetic-interference (EMI) shielding, electromagnetic-radiation absorbers for welding (joining) of plastics, conductive layers for light-emitting polymer devices, and anticorrosion coatings for iron and steel.The common electronic feature of pris tine (undoped) conducting polymers is the π-conjugated system, which is formed by the overlap of carbon pz orbitals and alternating carbon-carbon bond lengths.

Actuator-Like Hydrogels Based on Conductive Chitosan

2012 ◽  
Vol 84 ◽  
pp. 29-38 ◽  
Author(s):  
Jacques Desbrieres ◽  
Stephanie Reynaud ◽  
Pierre Marcasuzaa ◽  
Francis Ehrenfeld
Keyword(s):  
Mechanical Properties ◽  
Block Copolymer ◽  
Conducting Polymers ◽  
Rheological Properties ◽  
Conducting Polymer ◽  
Composite Hydrogel ◽  
Composite Gels ◽  
Grafting Reaction ◽  
Intrinsically Conducting Polymers ◽  
Low Solubility

Intrinsically conducting polymers are of great interest for a large number of applications. But among major drawbacks are their low solubility in common solvents and their poor mechanical properties. Elaboration of composites associating a matrix, bringing its mechanical properties, and polyaniline, as the conducting polymer is a way of overcoming these disadvantages. Chitosan-graft-polyaniline copolymers were synthesized by simple oxidative method. The grafting reaction was quite total and it was found that the copolymers crosslinked to yield a composite hydrogel in which the polyaniline was homogeneously embedded. The conductivity of precursor (block copolymer) and gels was found to be larger than 10-2 S.cm-1. The composite gels were characterized in terms of swelling and rheological properties. They can be classified as "superabsorbent" hydrogels and the swelling is reversible. The composite gels were then successfully used as actuators.

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