Surface Functionalization of Graphene Oxide with Polymer Brushes for Improving Thermal Properties of the Polymer Matrix
In this work, polymethyl methacrylate (PMMA) and polystyrene (PS) with controlled structures would be grafted on graphene material. The hybrid materials were prepared by coating graphene oxide (GO) with polydopamine (PDA) as a reactive underlayer and reducing agent, subsequently, surface-initiated p...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Polymer Technology |
| Online Access: | http://dx.doi.org/10.1155/2021/5591420 |
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| _version_ | 1832550449548361728 |
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| author | Shuangshuang Wang Houfang Chi Lin Chen Wei Li Yuchao Li Guang Li Xiangcai Ge |
| author_facet | Shuangshuang Wang Houfang Chi Lin Chen Wei Li Yuchao Li Guang Li Xiangcai Ge |
| author_sort | Shuangshuang Wang |
| collection | DOAJ |
| description | In this work, polymethyl methacrylate (PMMA) and polystyrene (PS) with controlled structures would be grafted on graphene material. The hybrid materials were prepared by coating graphene oxide (GO) with polydopamine (PDA) as a reactive underlayer and reducing agent, subsequently, surface-initiated polymerization of monomers (methyl methacrylate, styrene) based on the activators regenerated electron transfer atom transfer radical polymerization (ARGET-ATRP) technique. The polymer brush-modified graphene materials were then incorporated into the PMMA or PS matrix to get polymer nanocomposites with better thermal properties. The results of Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and thermal gravimetric analysis (TGA) demonstrated that PMMA and PS chains were successfully anchored on the surfaces of functionalized GO sheets. The influence of the grafted polymer brush-modified GO on thermal stability of PMMA and PS was investigated by a simultaneous thermal analyzer. Thermal conductivity of the polymer nanocomposite was determined by a conductive calorimeter. The results showed that thermal stability, glass transition temperature (Tg), and thermal conductivity of the polymer nanocomposites were obviously improved compared with pure PMMA or PS. |
| format | Article |
| id | doaj-art-cdc9202a72ac41a798f78722dc37457b |
| institution | Kabale University |
| issn | 0730-6679 1098-2329 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Polymer Technology |
| spelling | doaj-art-cdc9202a72ac41a798f78722dc37457b2025-02-03T06:06:49ZengWileyAdvances in Polymer Technology0730-66791098-23292021-01-01202110.1155/2021/55914205591420Surface Functionalization of Graphene Oxide with Polymer Brushes for Improving Thermal Properties of the Polymer MatrixShuangshuang Wang0Houfang Chi1Lin Chen2Wei Li3Yuchao Li4Guang Li5Xiangcai Ge6School of Materials Science and Engineering, Liaocheng University, Liaocheng 252059, ChinaSchool of Materials Science and Engineering, Liaocheng University, Liaocheng 252059, ChinaSchool of Materials Science and Engineering, Liaocheng University, Liaocheng 252059, ChinaKey Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics, Qingdao University of Science & Technology, Qingdao 266042, ChinaSchool of Materials Science and Engineering, Liaocheng University, Liaocheng 252059, ChinaSchool of Materials Science and Engineering, Liaocheng University, Liaocheng 252059, ChinaSchool of Materials Science and Engineering, Liaocheng University, Liaocheng 252059, ChinaIn this work, polymethyl methacrylate (PMMA) and polystyrene (PS) with controlled structures would be grafted on graphene material. The hybrid materials were prepared by coating graphene oxide (GO) with polydopamine (PDA) as a reactive underlayer and reducing agent, subsequently, surface-initiated polymerization of monomers (methyl methacrylate, styrene) based on the activators regenerated electron transfer atom transfer radical polymerization (ARGET-ATRP) technique. The polymer brush-modified graphene materials were then incorporated into the PMMA or PS matrix to get polymer nanocomposites with better thermal properties. The results of Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and thermal gravimetric analysis (TGA) demonstrated that PMMA and PS chains were successfully anchored on the surfaces of functionalized GO sheets. The influence of the grafted polymer brush-modified GO on thermal stability of PMMA and PS was investigated by a simultaneous thermal analyzer. Thermal conductivity of the polymer nanocomposite was determined by a conductive calorimeter. The results showed that thermal stability, glass transition temperature (Tg), and thermal conductivity of the polymer nanocomposites were obviously improved compared with pure PMMA or PS.http://dx.doi.org/10.1155/2021/5591420 |
| spellingShingle | Shuangshuang Wang Houfang Chi Lin Chen Wei Li Yuchao Li Guang Li Xiangcai Ge Surface Functionalization of Graphene Oxide with Polymer Brushes for Improving Thermal Properties of the Polymer Matrix Advances in Polymer Technology |
| title | Surface Functionalization of Graphene Oxide with Polymer Brushes for Improving Thermal Properties of the Polymer Matrix |
| title_full | Surface Functionalization of Graphene Oxide with Polymer Brushes for Improving Thermal Properties of the Polymer Matrix |
| title_fullStr | Surface Functionalization of Graphene Oxide with Polymer Brushes for Improving Thermal Properties of the Polymer Matrix |
| title_full_unstemmed | Surface Functionalization of Graphene Oxide with Polymer Brushes for Improving Thermal Properties of the Polymer Matrix |
| title_short | Surface Functionalization of Graphene Oxide with Polymer Brushes for Improving Thermal Properties of the Polymer Matrix |
| title_sort | surface functionalization of graphene oxide with polymer brushes for improving thermal properties of the polymer matrix |
| url | http://dx.doi.org/10.1155/2021/5591420 |
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