Reversible swelling-shrinking behavior of hydrogen-bonded free-standing thin film stabilized by catechol reaction
© 2015 American Chemical Society. Dopamine-modified poly(acrylic acid) (PAA-dopa) and poly(vinylpyrrolidone) (PVPON) was layer-by-layer (LbL) assembled to prepare thin film based on hydrogen bonding. The carboxylic group of acrylic acid and the phenolic hydroxyl group of dopamine can both act as hyd...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Published: |
American Chemical Society
2015
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| Online Access: | http://hdl.handle.net/20.500.11937/56052 |
| _version_ | 1848759774151180288 |
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| author | Sun, J. Su, Chao Zhang, X. Yin, W. Xu, J. Yang, S. |
| author_facet | Sun, J. Su, Chao Zhang, X. Yin, W. Xu, J. Yang, S. |
| author_sort | Sun, J. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2015 American Chemical Society. Dopamine-modified poly(acrylic acid) (PAA-dopa) and poly(vinylpyrrolidone) (PVPON) was layer-by-layer (LbL) assembled to prepare thin film based on hydrogen bonding. The carboxylic group of acrylic acid and the phenolic hydroxyl group of dopamine can both act as hydrogen bond donors. The critical assembly and the critical disintegration pH values of PVPON/PAA-dopa film are enhanced compared with PVPON/PAA film. The hydrogen-bonded PVPON/PAA-dopa thin film can be cross-linked via catechol chemistry of dopamine. After cross-linking, the film can be exfoliated from the substrate in alkaline solution to get a free-standing film. Moreover, by tuning the pH value, deprotonation and protonation of PAA will make the hydrogen bond in the film break and reconstruct, which induces that the free-standing film has a reversible swelling-shrinking behavior. |
| first_indexed | 2025-11-14T10:05:13Z |
| format | Journal Article |
| id | curtin-20.500.11937-56052 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:05:13Z |
| publishDate | 2015 |
| publisher | American Chemical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-560522017-09-13T16:11:24Z Reversible swelling-shrinking behavior of hydrogen-bonded free-standing thin film stabilized by catechol reaction Sun, J. Su, Chao Zhang, X. Yin, W. Xu, J. Yang, S. © 2015 American Chemical Society. Dopamine-modified poly(acrylic acid) (PAA-dopa) and poly(vinylpyrrolidone) (PVPON) was layer-by-layer (LbL) assembled to prepare thin film based on hydrogen bonding. The carboxylic group of acrylic acid and the phenolic hydroxyl group of dopamine can both act as hydrogen bond donors. The critical assembly and the critical disintegration pH values of PVPON/PAA-dopa film are enhanced compared with PVPON/PAA film. The hydrogen-bonded PVPON/PAA-dopa thin film can be cross-linked via catechol chemistry of dopamine. After cross-linking, the film can be exfoliated from the substrate in alkaline solution to get a free-standing film. Moreover, by tuning the pH value, deprotonation and protonation of PAA will make the hydrogen bond in the film break and reconstruct, which induces that the free-standing film has a reversible swelling-shrinking behavior. 2015 Journal Article http://hdl.handle.net/20.500.11937/56052 10.1021/la5048479 American Chemical Society restricted |
| spellingShingle | Sun, J. Su, Chao Zhang, X. Yin, W. Xu, J. Yang, S. Reversible swelling-shrinking behavior of hydrogen-bonded free-standing thin film stabilized by catechol reaction |
| title | Reversible swelling-shrinking behavior of hydrogen-bonded free-standing thin film stabilized by catechol reaction |
| title_full | Reversible swelling-shrinking behavior of hydrogen-bonded free-standing thin film stabilized by catechol reaction |
| title_fullStr | Reversible swelling-shrinking behavior of hydrogen-bonded free-standing thin film stabilized by catechol reaction |
| title_full_unstemmed | Reversible swelling-shrinking behavior of hydrogen-bonded free-standing thin film stabilized by catechol reaction |
| title_short | Reversible swelling-shrinking behavior of hydrogen-bonded free-standing thin film stabilized by catechol reaction |
| title_sort | reversible swelling-shrinking behavior of hydrogen-bonded free-standing thin film stabilized by catechol reaction |
| url | http://hdl.handle.net/20.500.11937/56052 |