Electrochemical Characterization of Pyrene Substituted Conducting Polymer via Nanostructured Carbon Material

Yıl 2019, Cilt: 7 Sayı: 1, 922 - 934, 31.01.2019

Tuğba Soğancı

https://doi.org/10.29130/dubited.420330

Cited By: 1

Öz

Polymeric composite materials have gained importance for their superior electrical properties together with the
developing technology. Nowadays, the production of novel composites are preferred for their superior electrical
and mechanical properties since they enable the electron transfer which has great charge density, derivable
functional groups and low cost carbon nano materials are combined with polymeric materials. Thus, in this work,
the electrochemical properties of the composite material obtained by (E) -4- (2,5-di (thiophen-2-yl) -1H-pyrrole1 -yl) -N- (pyran-1-ylmethylene) aniline (PMA) coating on the indium tin oxide (ITO) coated electrode modified
with reduced graphene oxide (rGO) have been studied. The monomer PMA has been successfully synthesized
via condensation reaction of pyrene-4-carbaldehyde and 4- (2,5-di (thiophen-2-yl) -1H-pyrrol-1-yl) aniline and
characterization of PMA has been achieved by 1H-NMR. By using electrochemical techniques, the stability, and
charge density of the obtained rGO / pPMA composite material and by using spectroelectrochemical techniques,
the optical properties of it have been analyzed. As the obtained results have been evaluated, it is observed that
the composite material supported by the produced nanocarbon material (NCM) has %99 a complete
electrochemical determination and has on average %42, a high optical permittivity to be used in smart materials.
The observed complete stability and high optical permittivity are promising for the use of the produced
composite material in technological practices.

Anahtar Kelimeler

Nanomaterials, Conducting polymers, Nanocomposites, Electrochemical properties

Nanokarbon ile Desteklenmiş Piren Sübstitüye İletken Polimerin Elektrokimyasal Karakterizasyonu

Öz

Gelişen teknolojiyle birlikte polimerik kompozit malzemeler üstün elektriksel özellikleri sebebiyle dikkat
çekmektedir. Günümüzde yüksek yük yoğunluğuna, türevlendirilebilir fonksiyonel gruplara sahip ve elektron
transferine olanak sağlayan, düşük maliyetli karbon nanomateryallerin polimerik malzemeler ile birleştirilerek,
yeni kompozit malzemelerin üretimi, bu malzemelerin üstün elektriksel ve mekanik özelliklerinden dolayı tercih
edilmektedir. Bu sebeple, bu çalışmada, indirgenmiş grafen oksit (rGO) ile modifiye edilmiş indiyum kalay oksit
(ITO) kaplı çalışma elektrodu üzerine (E)-4-(2,5-di(tiyofen-2-yl)-1H-pirol-1-yl)-N-(piren-1-ylmetilen) anilinin
(PMA) elektrokimyasal yöntemle kaplanmasıyla elde edilen kompozit malzemenin elektrokimyasal özellikleri
incelenmiştir. PMA, piren-4-karbaldehit ve 4-(2,5-di(tiyofen-2-yl)-1H-pirol-1-yl)anilinin, kondenzasyon
reaksiyonu sonucu başarılı bir şekilde sentezlenmiş ve karakterizasyonu 1H-NMR ile gerçekleştirilmiştir. Elde
edilen rGO/pPMA kompozitinin, elektrokimyasal teknikler kullanılarak stabilitesi, yük yoğunluğu,
spektroelektrokimyasal teknikler kullanılarak ise optik özellikleri analiz edilmiştir. Elde edilen sonuçlar
değerlendirildiğinde, üretilen nanokarbon (NCM) ile desteklenmiş kompozit malzemenin %99’luk mükemmel
bir elektrokimyasal kararlılığa ve % 42 gibi akıllı malzemelerde kullanılabilecek yüksek bir optik geçirgenliğe
sahip olduğu gözlenmiştir. Gözlenen mükemmel stabilite ve yüksek optik geçirgenlik, üretilen kompozit
malzemenin teknolojik uygulamalarda kullanımı için ümit vaat etmektedir.

Anahtar Kelimeler

Nanomateryaller, Elektrokimyasal özellikler, İletken polimerler, Nanokompozitler, Elektrokimyasal özellikler

Kaynakça

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