pH Sensitivity of Novel PANI/PVB/PS3 Composite Films
This paper reports on the results from the investigation into the pH sensitivity ofnovel PANI/PVB/PS3 composite films. The conductimetric sensing mode was chosen as itis one of the most promising alternatives to the mainstream pH-sensing methods and it is theleast investigated due to the popularity...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2007-12-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1424-8220/7/12/3329/ |
| _version_ | 1817990752064503808 |
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| author | Olga Korostynska Khalil Arshak Arousian Arshak Edric Gill |
| author_facet | Olga Korostynska Khalil Arshak Arousian Arshak Edric Gill |
| author_sort | Olga Korostynska |
| collection | DOAJ |
| description | This paper reports on the results from the investigation into the pH sensitivity ofnovel PANI/PVB/PS3 composite films. The conductimetric sensing mode was chosen as itis one of the most promising alternatives to the mainstream pH-sensing methods and it is theleast investigated due to the popularity of other approaches. The films were deposited usingboth screen-printing and a drop-coating method. It was found that the best response to pHwas obtained from the screen-printed thick films, which demonstrated a change inconductance by as much as three orders of magnitude over the pH range pH2-pH11. Thedevices exhibited a stable response over 96 hours of operation. Several films were immersedin buffer solutions of different pH values for 96 hours and these were then investigated usingXPS. The resulting N 1s spectra for the various films confirmed that the change inconductance was due to deprotonation of the PANI polymer backbone. SEM andProfilometry were also undertaken and showed that no considerable changes in themorphology of the films took place and that the films did not swell or contract due toexposure to test solutions. |
| first_indexed | 2024-04-14T01:03:12Z |
| format | Article |
| id | doaj.art-379d0e13780a49f4945b2ae21fdbb6ab |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-14T01:03:12Z |
| publishDate | 2007-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-379d0e13780a49f4945b2ae21fdbb6ab2022-12-22T02:21:19ZengMDPI AGSensors1424-82202007-12-017123329334610.3390/s7123329pH Sensitivity of Novel PANI/PVB/PS3 Composite FilmsOlga KorostynskaKhalil ArshakArousian ArshakEdric GillThis paper reports on the results from the investigation into the pH sensitivity ofnovel PANI/PVB/PS3 composite films. The conductimetric sensing mode was chosen as itis one of the most promising alternatives to the mainstream pH-sensing methods and it is theleast investigated due to the popularity of other approaches. The films were deposited usingboth screen-printing and a drop-coating method. It was found that the best response to pHwas obtained from the screen-printed thick films, which demonstrated a change inconductance by as much as three orders of magnitude over the pH range pH2-pH11. Thedevices exhibited a stable response over 96 hours of operation. Several films were immersedin buffer solutions of different pH values for 96 hours and these were then investigated usingXPS. The resulting N 1s spectra for the various films confirmed that the change inconductance was due to deprotonation of the PANI polymer backbone. SEM andProfilometry were also undertaken and showed that no considerable changes in themorphology of the films took place and that the films did not swell or contract due toexposure to test solutions.http://www.mdpi.com/1424-8220/7/12/3329/PANI composite filmXPSthick filmsconductanceinterdigitated electrodes. |
| spellingShingle | Olga Korostynska Khalil Arshak Arousian Arshak Edric Gill pH Sensitivity of Novel PANI/PVB/PS3 Composite Films Sensors PANI composite film XPS thick films conductance interdigitated electrodes. |
| title | pH Sensitivity of Novel PANI/PVB/PS3 Composite Films |
| title_full | pH Sensitivity of Novel PANI/PVB/PS3 Composite Films |
| title_fullStr | pH Sensitivity of Novel PANI/PVB/PS3 Composite Films |
| title_full_unstemmed | pH Sensitivity of Novel PANI/PVB/PS3 Composite Films |
| title_short | pH Sensitivity of Novel PANI/PVB/PS3 Composite Films |
| title_sort | ph sensitivity of novel pani pvb ps3 composite films |
| topic | PANI composite film XPS thick films conductance interdigitated electrodes. |
| url | http://www.mdpi.com/1424-8220/7/12/3329/ |
| work_keys_str_mv | AT olgakorostynska phsensitivityofnovelpanipvbps3compositefilms AT khalilarshak phsensitivityofnovelpanipvbps3compositefilms AT arousianarshak phsensitivityofnovelpanipvbps3compositefilms AT edricgill phsensitivityofnovelpanipvbps3compositefilms |