Swift heavy ion induced modifications in metal conducting polymer composite films

ABSTRACTNanoporous composite films of multi-walled carbon nanotubes (MWNTs) and either polypyrrole (PPy) or poly(3-methylthiophene) (P3MeT) were grown using an electrochemical polymerization technique in which the nanotubes and conducting polymer were deposited simultaneously. The concentration and dispersion of MWNTs in the polymerization electrolyte was found to have a significant effect on the thickness of polymer coated on each MWNT and hence the loading of MWNTs in the films produced. It has been shown that for an increasing concentration of MWNTs in the polymerization electrolyte, the thickness of polymer coated on each MWNT decreases. This relationship made it possible to minimize ionic diffusion distances within the nanoporous MWNT-PPy films produced, reducing their electrical and ionic resistance and increasing their capacitance relative to similarly prepared pure PPy films.

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Swift heavy ion induced formation of Al/polymer composite layer for low thermal emissivity in the IR range

Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms ◽

10.1016/j.nimb.2012.06.005 ◽

2012 ◽

Vol 287 ◽

pp. 135-140 ◽

Cited By ~ 5

Author(s):

Harshada A. Babrekar ◽

J.P. Jog ◽

V.L. Mathe ◽

D.K. Avasthi ◽

S. Ojha ◽

...

Keyword(s):

Polymer Composite ◽

Composite Layer ◽

Heavy Ion ◽

Thermal Emissivity ◽

Swift Heavy Ion

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Fabrication and characterization of organic semiconductor for electromagnetic interference shielding material

Journal of Polymer Engineering ◽

10.1515/polyeng.2011.032 ◽

2011 ◽

Vol 31 (4) ◽

Cited By ~ 2

Author(s):

Habibun Nabi Muhammad Ekramul Mahmud ◽

Anuar Kassim

Keyword(s):

Conducting Polymer ◽

Polymer Composite ◽

Indium Tin Oxide ◽

Electromagnetic Interference ◽

Composite Films ◽

Oxide Glass ◽

Poly Vinyl Alcohol ◽

Shielding Effectiveness ◽

Emi Shielding ◽

Shielding Material

Abstract Conducting polymer films produced by electropolymerization technique are highly conductive, simple, and suitable for use especially in electronic devices. An attempt has been made to produce polypyrrole-poly(vinyl alcohol) (PPy-PVA) conducting polymer composite films using 0.1 m p-toluene sulfonate dopant at a potential of 1.2 V (vs. standard calomel electrode) on indium tin oxide glass electrode. The potential application of the prepared PPy-PVA conducting polymer composite films as an electromagnetic interference (EMI) shielding material has been investigated in the present study. The EMI shielding effectiveness of PPy-PVA composite films prepared from different experimental conditions was analyzed in the microwave frequency range of 8–12 GHz. The shielding effectiveness of 45.67–35.7 dB has been demonstrated by PPy-PVA conducting polymer composite films, which appears to be very attractive in any EMI shielding applications where a minimum shielding effectiveness of 35 dB is required.

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