Thermally stable hybrid polyarylidene(azomethine-ether)s polymers (PAAP): an ultrasensitive arsenic(III) sensor approach

Mohammed M Rahman; Mahmoud A Hussein; Kamal I Aly; Abdullah M Asiri

doi:10.1080/15685551.2018.1471793

Thermally stable hybrid polyarylidene(azomethine-ether)s polymers (PAAP): an ultrasensitive arsenic(III) sensor approach

Des Monomers Polym. 2018 May 22;21(1):82-98. doi: 10.1080/15685551.2018.1471793. eCollection 2018.

Authors

Mohammed M Rahman^{1

2}, Mahmoud A Hussein^{1

3}, Kamal I Aly³, Abdullah M Asiri^{1

2}

Affiliations

¹ Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia.
² Center of Excellence for Advanced Material Research (CEAMR), King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia.
³ Polymer Chemistry Lab. 122, Chemistry Department, Faculty of Science, Assiut University, Assiut, Egypt.

Abstract

A new category of thermally stable hybrid polyarylidene(azomethine-ether)s and copolyarylidene(azomethine-ether)s (PAAP) based on diarylidenecycloalkanones has been synthesized using solution polycondensation method. For potential cationic sensor development, a thin layer of PAAP onto a flat glassy carbon electrode (GCE, surface area: 0.0316 cm²) was prepared with conducting nafion (5%) coating agent to fabricate a sensitive and selective arsenic (III) [As³⁺] ion in short response time in neutral buffer system. The fabricated cationic sensor was measured the analytical performances such as higher sensitivity, linear dynamic range, detection limit, reproducibility, and long-term stability towards As³⁺ ions. The sensitivity and detection limit were calculated as 2.714 μAμM^-1cm^-2 and 6.8 ± 0.1 nM (SNR of 3; 3N/S) respectively from the calibration curve. This novel approach can be initiated a well-organized route of an efficient development of heavy selective arsenic sensor for hazardous pollutants in biological, environmental, and health care fields. Real sample analysis for various environmental sample was performed with PAAP-modified-GCE.

Keywords: Polyarylidene(azomethine-ether)s (PAAP); arsenic (III); diarylidenecycloalkanones; electrochemical method; real sample analyses; thermal behavior.