The Glass-Transition Temperature of Supported PMMA Thin Films with Hydrogen Bond/Plasmonic Interface
The interfacial effect is one of the significant factors in the glass-transition temperature (T<sub>g</sub>) of the polymeric thin film system, competing against the free surface effect. Herein, the T<sub>g</sub>s of poly (methyl methacrylate) (PMMA) films with different thic...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-04-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/11/4/601 |
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| author | Jiayao Chen Jing Li Lirong Xu Wei Hong Yuzhao Yang Xudong Chen |
| author_facet | Jiayao Chen Jing Li Lirong Xu Wei Hong Yuzhao Yang Xudong Chen |
| author_sort | Jiayao Chen |
| collection | DOAJ |
| description | The interfacial effect is one of the significant factors in the glass-transition temperature (T<sub>g</sub>) of the polymeric thin film system, competing against the free surface effect. Herein, the T<sub>g</sub>s of poly (methyl methacrylate) (PMMA) films with different thicknesses and substrates are studied by fluorescence measurements, focusing on the influence of interfacial effects on the T<sub>g</sub>s. The strong interaction between PMMA and quartz substrate leads to increased T<sub>g</sub>s with the decreased thickness of the film. The plasmonic silver substrate causes enhanced fluorescence intensity near the interface, resulting in the delayed reduction of the T<sub>g</sub>s with the increasing film thickness. Moreover, as a proof of the interface-dependent T<sub>g</sub>s, hydrogen bonds of PMMA/quartz and molecules orientation of PMMA/silver are explored by the Raman spectroscopy, and the interfacial interaction energy is calculated by the molecular dynamics simulation. In this study, we probe the inter-relationship between the interfacial interactions arising from the different substrates and the T<sub>g</sub> behavior of polymer thin films. |
| first_indexed | 2024-04-13T18:11:15Z |
| format | Article |
| id | doaj.art-761414b7c44d47a5bb46af21e4991990 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-04-13T18:11:15Z |
| publishDate | 2019-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-761414b7c44d47a5bb46af21e49919902022-12-22T02:35:52ZengMDPI AGPolymers2073-43602019-04-0111460110.3390/polym11040601polym11040601The Glass-Transition Temperature of Supported PMMA Thin Films with Hydrogen Bond/Plasmonic InterfaceJiayao Chen0Jing Li1Lirong Xu2Wei Hong3Yuzhao Yang4Xudong Chen5Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education of China, Guangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional Films, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, ChinaKey Laboratory for Polymeric Composite and Functional Materials of Ministry of Education of China, Guangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional Films, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, ChinaKey Laboratory for Polymeric Composite and Functional Materials of Ministry of Education of China, Guangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional Films, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, ChinaKey Laboratory for Polymeric Composite and Functional Materials of Ministry of Education of China, Guangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional Films, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, ChinaKey Laboratory for Polymeric Composite and Functional Materials of Ministry of Education of China, Guangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional Films, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, ChinaKey Laboratory for Polymeric Composite and Functional Materials of Ministry of Education of China, Guangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional Films, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, ChinaThe interfacial effect is one of the significant factors in the glass-transition temperature (T<sub>g</sub>) of the polymeric thin film system, competing against the free surface effect. Herein, the T<sub>g</sub>s of poly (methyl methacrylate) (PMMA) films with different thicknesses and substrates are studied by fluorescence measurements, focusing on the influence of interfacial effects on the T<sub>g</sub>s. The strong interaction between PMMA and quartz substrate leads to increased T<sub>g</sub>s with the decreased thickness of the film. The plasmonic silver substrate causes enhanced fluorescence intensity near the interface, resulting in the delayed reduction of the T<sub>g</sub>s with the increasing film thickness. Moreover, as a proof of the interface-dependent T<sub>g</sub>s, hydrogen bonds of PMMA/quartz and molecules orientation of PMMA/silver are explored by the Raman spectroscopy, and the interfacial interaction energy is calculated by the molecular dynamics simulation. In this study, we probe the inter-relationship between the interfacial interactions arising from the different substrates and the T<sub>g</sub> behavior of polymer thin films.https://www.mdpi.com/2073-4360/11/4/601glass-transition temperaturetemperature dependent fluorescencesurface plasmoninterfacial effectconformation |
| spellingShingle | Jiayao Chen Jing Li Lirong Xu Wei Hong Yuzhao Yang Xudong Chen The Glass-Transition Temperature of Supported PMMA Thin Films with Hydrogen Bond/Plasmonic Interface Polymers glass-transition temperature temperature dependent fluorescence surface plasmon interfacial effect conformation |
| title | The Glass-Transition Temperature of Supported PMMA Thin Films with Hydrogen Bond/Plasmonic Interface |
| title_full | The Glass-Transition Temperature of Supported PMMA Thin Films with Hydrogen Bond/Plasmonic Interface |
| title_fullStr | The Glass-Transition Temperature of Supported PMMA Thin Films with Hydrogen Bond/Plasmonic Interface |
| title_full_unstemmed | The Glass-Transition Temperature of Supported PMMA Thin Films with Hydrogen Bond/Plasmonic Interface |
| title_short | The Glass-Transition Temperature of Supported PMMA Thin Films with Hydrogen Bond/Plasmonic Interface |
| title_sort | glass transition temperature of supported pmma thin films with hydrogen bond plasmonic interface |
| topic | glass-transition temperature temperature dependent fluorescence surface plasmon interfacial effect conformation |
| url | https://www.mdpi.com/2073-4360/11/4/601 |
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