Microwave Absorption Properties of Solid-State Polymerization Ethylenedioxythiophene

Abstract:

Poly (3,4-ethylenedioxythiophene) (PEDOT) has been synthesized through a facile solid-state polymerization (SSP) approach. The polymerization was simply initiated by sintering the monomer, 2,5-dibro-3,4-ethylenedioxythiophene (DBEDOT), at the temperature of 80 ^°C. The SSP-PEDOT with the heating time for 24 hours has the maximum value of dielectric loss tangent (tanδ_ε) in the frequency range of 2-18 GHz, which revealed that this sample has the best electromagnetic energy absorption ability. When the thickness of the sample reached 2 mm, the bandwidth with the reflection loss (RL) deeper than −10 dB is nearly 5.9 GHz (From 10.0 GHz to 15.9 GHz), and the maximum value of RL is about −50.1 dB at 11.2 GHz. These results demonstrate that SSP initiated at low temperature shows multi-practical application in the areas of military camouflage, and electronic devices protection.

• Periodical: Materials Science Forum (Volume 815)
• Pages: 483-488
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.815.483
• Online since: March 2015
• Authors: Zhuang Hu Xu, Ming Xu Sui, Meng Xiao Sun, Yuan Wang, Ming Yang Wang*
• Keywords: Microwave Absorption, Poly(3,4-Ethylenedioxythiophene), Solid-State Polymerization

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