Brush-like Polyaniline with Optical and Electroactive Properties at Neutral pH and High Temperature
In this research, a brush-like polyaniline (poly(2-acrylamide-2-methyl-1-propanesulfonate)-<i>g</i>-polyaniline)-<i>b</i>-poly(<i>N</i>-vinylcarbazole) (BL PAni) was developed as a strategy to overcome the limited processability and dedoping above pH 4 of conventi...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-07-01
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| Series: | International Journal of Molecular Sciences |
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| Online Access: | https://www.mdpi.com/1422-0067/23/15/8085 |
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| author | Alain Salvador Conejo-Dávila Carlos Rafael Casas-Soto Eider Pedro Aparicio-Martínez David Chávez-Flores Víctor Hugo Ramos-Sánchez Rocio Berenice Dominguez Velia Carolina Osuna Anayansi Estrada-Monje Alejandro Vega-Rios Erasto Armando Zaragoza-Contreras |
| author_facet | Alain Salvador Conejo-Dávila Carlos Rafael Casas-Soto Eider Pedro Aparicio-Martínez David Chávez-Flores Víctor Hugo Ramos-Sánchez Rocio Berenice Dominguez Velia Carolina Osuna Anayansi Estrada-Monje Alejandro Vega-Rios Erasto Armando Zaragoza-Contreras |
| author_sort | Alain Salvador Conejo-Dávila |
| collection | DOAJ |
| description | In this research, a brush-like polyaniline (poly(2-acrylamide-2-methyl-1-propanesulfonate)-<i>g</i>-polyaniline)-<i>b</i>-poly(<i>N</i>-vinylcarbazole) (BL PAni) was developed as a strategy to overcome the limited processability and dedoping above pH 4 of conventional polyaniline (PAni). For the BL PAni synthesis, RAFT polymerization (homopolymer), RAFT-mediated surfactant-free emulsion polymerization (block copolymer), and interfacial oxidative polymerization were applied to graft the PAni chains. NMR and FT-IR spectroscopies were performed to confirm the structural elucidation of the reaction pathways, while the thermal properties were analyzed by TGA and DSC. Notably, the BL PAni presents absorption throughout the visible region and up to the near-infrared, showing dedoping resistance at up to 80 °C and at a neutral pH. The absorption range of the BL PAni, block copolymer, and homopolymer were studied by UV–Vis spectroscopy in solid-state and dispersion/solution, highlighting BL PAni and poly(anilinium 2-acrylamide-2-methyl-1-propanesulfonate)-<i>b</i>-poly(<i>N</i>-vinylcarbazole) (PAAMP-<i>b</i>-PVK) due to the π-stacking between the anilinium and carbazole groups. The cyclic voltammetry confirmed the persistence of electroactivity at a pH near 7. |
| first_indexed | 2024-03-09T12:36:45Z |
| format | Article |
| id | doaj.art-3f8d17547c674c869ef199af5bdb2d80 |
| institution | Directory Open Access Journal |
| issn | 1661-6596 1422-0067 |
| language | English |
| last_indexed | 2024-03-09T12:36:45Z |
| publishDate | 2022-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | International Journal of Molecular Sciences |
| spelling | doaj.art-3f8d17547c674c869ef199af5bdb2d802023-11-30T22:23:36ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672022-07-012315808510.3390/ijms23158085Brush-like Polyaniline with Optical and Electroactive Properties at Neutral pH and High TemperatureAlain Salvador Conejo-Dávila0Carlos Rafael Casas-Soto1Eider Pedro Aparicio-Martínez2David Chávez-Flores3Víctor Hugo Ramos-Sánchez4Rocio Berenice Dominguez5Velia Carolina Osuna6Anayansi Estrada-Monje7Alejandro Vega-Rios8Erasto Armando Zaragoza-Contreras9Department of Engineering and Materials Chemistry, Centro de Investigación en Materiales Avanzados, S.C., Miguel de Cervantes No. 120, Complejo Industrial Chihuahua, Chihuahua 31136, MexicoDepartment of Engineering and Materials Chemistry, Centro de Investigación en Materiales Avanzados, S.C., Miguel de Cervantes No. 120, Complejo Industrial Chihuahua, Chihuahua 31136, MexicoDepartment of Engineering and Materials Chemistry, Centro de Investigación en Materiales Avanzados, S.C., Miguel de Cervantes No. 120, Complejo Industrial Chihuahua, Chihuahua 31136, MexicoFacultad de Ciencias Químicas, Universidad Autónoma de Chihuahua, Chihuahua 31125, MexicoFacultad de Ciencias Químicas, Universidad Autónoma de Chihuahua, Chihuahua 31125, MexicoCONACYT-CIMAV S.C., Miguel de Cervantes 120, Complejo Industrial Chihuahua, Chihuahua 31136, MexicoCONACYT-CIMAV S.C., Miguel de Cervantes 120, Complejo Industrial Chihuahua, Chihuahua 31136, MexicoCentro de Innovación Aplicada en Tecnologías Competitivas, A.C. Calle Omega No. 201, Industrial Delta, León 37545, MexicoDepartment of Engineering and Materials Chemistry, Centro de Investigación en Materiales Avanzados, S.C., Miguel de Cervantes No. 120, Complejo Industrial Chihuahua, Chihuahua 31136, MexicoDepartment of Engineering and Materials Chemistry, Centro de Investigación en Materiales Avanzados, S.C., Miguel de Cervantes No. 120, Complejo Industrial Chihuahua, Chihuahua 31136, MexicoIn this research, a brush-like polyaniline (poly(2-acrylamide-2-methyl-1-propanesulfonate)-<i>g</i>-polyaniline)-<i>b</i>-poly(<i>N</i>-vinylcarbazole) (BL PAni) was developed as a strategy to overcome the limited processability and dedoping above pH 4 of conventional polyaniline (PAni). For the BL PAni synthesis, RAFT polymerization (homopolymer), RAFT-mediated surfactant-free emulsion polymerization (block copolymer), and interfacial oxidative polymerization were applied to graft the PAni chains. NMR and FT-IR spectroscopies were performed to confirm the structural elucidation of the reaction pathways, while the thermal properties were analyzed by TGA and DSC. Notably, the BL PAni presents absorption throughout the visible region and up to the near-infrared, showing dedoping resistance at up to 80 °C and at a neutral pH. The absorption range of the BL PAni, block copolymer, and homopolymer were studied by UV–Vis spectroscopy in solid-state and dispersion/solution, highlighting BL PAni and poly(anilinium 2-acrylamide-2-methyl-1-propanesulfonate)-<i>b</i>-poly(<i>N</i>-vinylcarbazole) (PAAMP-<i>b</i>-PVK) due to the π-stacking between the anilinium and carbazole groups. The cyclic voltammetry confirmed the persistence of electroactivity at a pH near 7.https://www.mdpi.com/1422-0067/23/15/8085poly(<i>N</i>-vinylcarbazole)RAFT-polymerizationbrush-like polyanilineneutral pH |
| spellingShingle | Alain Salvador Conejo-Dávila Carlos Rafael Casas-Soto Eider Pedro Aparicio-Martínez David Chávez-Flores Víctor Hugo Ramos-Sánchez Rocio Berenice Dominguez Velia Carolina Osuna Anayansi Estrada-Monje Alejandro Vega-Rios Erasto Armando Zaragoza-Contreras Brush-like Polyaniline with Optical and Electroactive Properties at Neutral pH and High Temperature International Journal of Molecular Sciences poly(<i>N</i>-vinylcarbazole) RAFT-polymerization brush-like polyaniline neutral pH |
| title | Brush-like Polyaniline with Optical and Electroactive Properties at Neutral pH and High Temperature |
| title_full | Brush-like Polyaniline with Optical and Electroactive Properties at Neutral pH and High Temperature |
| title_fullStr | Brush-like Polyaniline with Optical and Electroactive Properties at Neutral pH and High Temperature |
| title_full_unstemmed | Brush-like Polyaniline with Optical and Electroactive Properties at Neutral pH and High Temperature |
| title_short | Brush-like Polyaniline with Optical and Electroactive Properties at Neutral pH and High Temperature |
| title_sort | brush like polyaniline with optical and electroactive properties at neutral ph and high temperature |
| topic | poly(<i>N</i>-vinylcarbazole) RAFT-polymerization brush-like polyaniline neutral pH |
| url | https://www.mdpi.com/1422-0067/23/15/8085 |
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