Conductive poly ( o -anisidine)/poly (ethylene terephthalate) nonwoven composite: Investigation of synthesis parameters and electromagnetic shielding effectiveness
Source abstract
Abstract
A conductive poly( o-anisidine) (POA)/poly(ethylene terephthalate) (PET) nonwoven composite was prepared by chemical oxidative polymerization of o-anisidine in aqueous HCl solution. The effects of the oxidant type, oxidant/monomer mol ratio, and polymerization temperature and time were studied on POA content and surface resistivity of the composite. It was observed that the swelling of PET in 1,4-dioxane decreased the surface resistivity of the POA/PET composite by up to 18.5 kΩ/cm 2 , when compared to that of the unswollen PET nonwoven. According to the electromagnetic shielding effectiveness (EMSE), and the relative shielding efficiency of the absorbance (A b ) and reflectance (R e ) values of the composite in the range 15–1500 MHz, 99.9% of the shielding was obtained with an attenuation of 33 dB at 15 MHz. The durability of the composite was determined by measuring its surface resistivity after domestic washing and commercial laundering.
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Research context
OpenAlex topics: Conducting polymers and applications · Electromagnetic wave absorption materials · Advanced Sensor and Energy Harvesting Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Chemistry, Ankara University, Ankara, Turkey
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