Polymerization of polyaniline under various concentrations of ammonium peroxydisulfate and hydrochloric acid by ultrasonic irradiation
Effects of various molar ratios of monomer (aniline), oxidant (ammonium peroxydisulfate), and dopant (hydrochloric acid) on the polymerization of polyaniline (PANI) were investigated using direct ultrasonic irradiation technique. The effects of varying molar ratio of dopant and oxidant on the struct...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Published: |
John Wiley and Sons Inc
2021
|
| Subjects: |
| _version_ | 1796865943088922624 |
|---|---|
| author | Zheng, Xuefeng Ali Mohsin, M. E. Arsad, Agus Hassan, Azman |
| author_facet | Zheng, Xuefeng Ali Mohsin, M. E. Arsad, Agus Hassan, Azman |
| author_sort | Zheng, Xuefeng |
| collection | ePrints |
| description | Effects of various molar ratios of monomer (aniline), oxidant (ammonium peroxydisulfate), and dopant (hydrochloric acid) on the polymerization of polyaniline (PANI) were investigated using direct ultrasonic irradiation technique. The effects of varying molar ratio of dopant and oxidant on the structural stability, morphology, and electrical conductivity of the prepared PANI were studied. Firstly, a scheme derived from electrical conductivity point of view, by varying the molar ratio of ammonium peroxydisulfate (APS). As the molar ratio of APS to aniline (ANI) varied from 0.1 to 1.25, the conductivity of PANI reached a maximum of 0.24 S/cm at a ratio of 1. Thereafter, by fixing the optimized molar ratio of APS and aniline the molar ratio of hydrochloric acid (HCl) was varied. The conductivity of PANI increased with an increase of HCl concentration and reached a maximum of 0.5 S/cm at an HCl concentration of 2 M. Finally, the formation mechanism for polymerization of PANI were discussed using Fourier transform infrared spectra, ultraviolet–visible spectra, nuclear magnetic resonance spectroscopy, and X-ray diffraction spectroscopy. The final product is in protonated form, possessing structural stability and electrically conductive. |
| first_indexed | 2024-03-05T21:04:46Z |
| format | Article |
| id | utm.eprints-95049 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T21:04:46Z |
| publishDate | 2021 |
| publisher | John Wiley and Sons Inc |
| record_format | dspace |
| spelling | utm.eprints-950492022-04-29T22:23:34Z http://eprints.utm.my/95049/ Polymerization of polyaniline under various concentrations of ammonium peroxydisulfate and hydrochloric acid by ultrasonic irradiation Zheng, Xuefeng Ali Mohsin, M. E. Arsad, Agus Hassan, Azman TP Chemical technology Effects of various molar ratios of monomer (aniline), oxidant (ammonium peroxydisulfate), and dopant (hydrochloric acid) on the polymerization of polyaniline (PANI) were investigated using direct ultrasonic irradiation technique. The effects of varying molar ratio of dopant and oxidant on the structural stability, morphology, and electrical conductivity of the prepared PANI were studied. Firstly, a scheme derived from electrical conductivity point of view, by varying the molar ratio of ammonium peroxydisulfate (APS). As the molar ratio of APS to aniline (ANI) varied from 0.1 to 1.25, the conductivity of PANI reached a maximum of 0.24 S/cm at a ratio of 1. Thereafter, by fixing the optimized molar ratio of APS and aniline the molar ratio of hydrochloric acid (HCl) was varied. The conductivity of PANI increased with an increase of HCl concentration and reached a maximum of 0.5 S/cm at an HCl concentration of 2 M. Finally, the formation mechanism for polymerization of PANI were discussed using Fourier transform infrared spectra, ultraviolet–visible spectra, nuclear magnetic resonance spectroscopy, and X-ray diffraction spectroscopy. The final product is in protonated form, possessing structural stability and electrically conductive. John Wiley and Sons Inc 2021 Article PeerReviewed Zheng, Xuefeng and Ali Mohsin, M. E. and Arsad, Agus and Hassan, Azman (2021) Polymerization of polyaniline under various concentrations of ammonium peroxydisulfate and hydrochloric acid by ultrasonic irradiation. Journal of Applied Polymer Science, 138 (27). p. 50637. ISSN 0021-8995 http://dx.doi.org/10.1002/app.50637 |
| spellingShingle | TP Chemical technology Zheng, Xuefeng Ali Mohsin, M. E. Arsad, Agus Hassan, Azman Polymerization of polyaniline under various concentrations of ammonium peroxydisulfate and hydrochloric acid by ultrasonic irradiation |
| title | Polymerization of polyaniline under various concentrations of ammonium peroxydisulfate and hydrochloric acid by ultrasonic irradiation |
| title_full | Polymerization of polyaniline under various concentrations of ammonium peroxydisulfate and hydrochloric acid by ultrasonic irradiation |
| title_fullStr | Polymerization of polyaniline under various concentrations of ammonium peroxydisulfate and hydrochloric acid by ultrasonic irradiation |
| title_full_unstemmed | Polymerization of polyaniline under various concentrations of ammonium peroxydisulfate and hydrochloric acid by ultrasonic irradiation |
| title_short | Polymerization of polyaniline under various concentrations of ammonium peroxydisulfate and hydrochloric acid by ultrasonic irradiation |
| title_sort | polymerization of polyaniline under various concentrations of ammonium peroxydisulfate and hydrochloric acid by ultrasonic irradiation |
| topic | TP Chemical technology |
| work_keys_str_mv | AT zhengxuefeng polymerizationofpolyanilineundervariousconcentrationsofammoniumperoxydisulfateandhydrochloricacidbyultrasonicirradiation AT alimohsinme polymerizationofpolyanilineundervariousconcentrationsofammoniumperoxydisulfateandhydrochloricacidbyultrasonicirradiation AT arsadagus polymerizationofpolyanilineundervariousconcentrationsofammoniumperoxydisulfateandhydrochloricacidbyultrasonicirradiation AT hassanazman polymerizationofpolyanilineundervariousconcentrationsofammoniumperoxydisulfateandhydrochloricacidbyultrasonicirradiation |