DataVXPolymers and Polymer CompositesPaper
journal article·2020-10

Effect of dopant concentration on polyaniline/poly(4-styrene sulfonic acid) composite for ammonia gas detection

P Jayamurugan, R Mariappan, S Deivanayaki, V Ponnuswamy, P Maadeswaran, Murthy Chavali, Y V Subba Rao

Polymers and Polymer Composites· Volume 28· Issue 8-9
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Source abstract

Abstract

Polyaniline (PANI)/poly(4-styrene sulfonic acid) (PSS) has been prepared for various molar ratios of hydrochloric acid (HCl) (1, 2, 3 and 4 M, respectively) through in situ chemical polymerization method. The reaction temperature was 25°C for 3 h. Fourier transform infrared spectroscopy spectrum confirms the attachment of the structure to functional groups. The intensity of PANI is increased with increasing HCl concentration. Scanning electron microscopic graphs reveal the irregular morphology. The complex impedance of the PANI/PSS shows two distinguished semicircles and the diameter of the arcs decreased with an increase in ammonia concentration at room temperature. The sensitivity of the sensor increased with time, and the maximum sensitivity is 7.4 at 3 M of HCl for 500 ppm. The results are discussed and reported.
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Research context

PolymersComposites

OpenAlex topics: Conducting polymers and applications · Analytical Chemistry and Sensors · Gas Sensing Nanomaterials and Sensors

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Physics, Sri Ramakrishna Mission Vidyalaya College of Arts and Science, Coimbatore, Tamil Nadu, India

Department of Physics, Adhiyamaan College of Engineering, Hosur, Tamil Nadu, India

Department of Physics, Sri Ramakrishna Engineering College, Vattamalaipalayam, Coimbatore, Tamil Nadu, India

Department of Energy Science, Periyar University, Salem, Tamil Nadu, India

PG Department of Chemistry, Dharma Appa Rao College, Nuzvid, Andhra Pradesh, India

Department of chemistry (PG studies), Shree Velagapudi Rama Krishna Memorial College (PG Studies), Affiliated to Acharya Nagarjuna University, Nagaram, Andhra Pradesh, India

Department of chemistry (PG studies), MCETRC, Tenali, Guntur District, Andhra Pradesh, India

Department of chemistry (PG studies), Alpha Scientific, Venkatapuram, Hyderabad, Telangana, India

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