Dielectric behavior of SBS/polyaniline thermally processable blends
Date
2018-01-20
Journal Title
Journal ISSN
Volume Title
Publisher
Lviv Politechnic Publishing House
Abstract
Одержано триблок-кополімерні суміші сти-
рен-бутадієн-стирену (СБС) з різними концентраціями поліані-
ліну (ПАН). Визначено вплив таких параметрів, як концент-
рація ПАН, частота та температура на електричні влас-
тивості: густину, діелектричну проникність, тангенс кута
втрат та провідність змінного струму. Показано, що незначне
зменшення об'ємного питомого опору як функції температури,
є корисним за умов утрудненого контролю температури.
Встановлено, що зразок із 45% мас. ПАН потенційно може
бути використаний у полі електромагнітного випромінювання.
Доведено, що електрична провідність суміші переважає йонне
транспортування. Одержані матеріали можна викорис-
товувати як стратегічний, недорогий, екологічно чистий
матеріал у різних суміжних сферах.
1Styrene–butadiene–styrene triblock copolymer (SBS) blends were prepared using different weight ratios of conducting polyaniline (PANI). Several electrical properties such as volume resistivity, dielectric constant, dissipation factor and alternating current conductivity of the blends were studied pointing to understand the influence of different parameters like PANI concentration, frequency, and temperature on these properties. The prepared materials present a slight reduction in volume resistivity as a function of temperature, being useful in conditions where the temperature control is hard. More than this, dielectric constant tests allowed inferring that among tested samples, the one filled with 45 wt % of PANI is potentially able to be used in the electromagnetic dissipation field. Finally, the alternating current tests allowed to prove that the electrical conduction of the blend is mainly dominated by ionic transportation. Therefore, prepared materials can be considered as a strategic, low-cost, environmentally friendly material which can be used in various border fields.
1Styrene–butadiene–styrene triblock copolymer (SBS) blends were prepared using different weight ratios of conducting polyaniline (PANI). Several electrical properties such as volume resistivity, dielectric constant, dissipation factor and alternating current conductivity of the blends were studied pointing to understand the influence of different parameters like PANI concentration, frequency, and temperature on these properties. The prepared materials present a slight reduction in volume resistivity as a function of temperature, being useful in conditions where the temperature control is hard. More than this, dielectric constant tests allowed inferring that among tested samples, the one filled with 45 wt % of PANI is potentially able to be used in the electromagnetic dissipation field. Finally, the alternating current tests allowed to prove that the electrical conduction of the blend is mainly dominated by ionic transportation. Therefore, prepared materials can be considered as a strategic, low-cost, environmentally friendly material which can be used in various border fields.
Description
Keywords
СБС, поліанілін, суміш розплавів, діелектрична поведінка, SBS, polyaniline, melt blending, dielectric behavior
Citation
Dielectric behavior of SBS/polyaniline thermally processable blends / Fernando G., Souza Jr., Bluma G. Soares, Fabiola Silveira, N. M. Renukappa, Siddaramaiah // Chemistry & Chemical Technology. — Lviv : Lviv Politechnic Publishing House, 2018. — Vol 12. — No 4. — P. 441–446.