Copper (0) Mediated Single Electron Transfer-Living Radical Polymerization of Methyl Methacrylate: Functionalized Graphene as a Convenient Tool for Radical Initiator
Polymer nanocomposites have been synthesized by the covalent addition of bromide-functionalized graphene (Graphene-Br) through the single electron transfer-living radical polymerization technique (SET-LRP). Graphite functionalized with bromide for the first time via an efficient route using mild rea...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-04-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/12/4/874 |
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| author | Adhigan Murali Srinivasan Sampath Boopathi Appukutti Achuthan Mohan Sakar Suryanarayanan Chandrasekaran N. Suthanthira Vanitha R. Joseph Bensingh M. Abdul Kader Sellamuthu N. Jaisankar |
| author_facet | Adhigan Murali Srinivasan Sampath Boopathi Appukutti Achuthan Mohan Sakar Suryanarayanan Chandrasekaran N. Suthanthira Vanitha R. Joseph Bensingh M. Abdul Kader Sellamuthu N. Jaisankar |
| author_sort | Adhigan Murali |
| collection | DOAJ |
| description | Polymer nanocomposites have been synthesized by the covalent addition of bromide-functionalized graphene (Graphene-Br) through the single electron transfer-living radical polymerization technique (SET-LRP). Graphite functionalized with bromide for the first time via an efficient route using mild reagents has been designed to develop a graphene based radical initiator. The efficiency of sacrificial initiator (ethyl α-bromoisobutyrate) has also been compared with a graphene based initiator towards monitoring their Cu(0) mediated controlled molecular weight and morphological structures through mass spectroscopy (MOLDI-TOF) and field emission scanning electron microscopy (FE-SEM) analysis, respectively. The enhancement in thermal stability is observed for graphene-grafted-poly(methyl methacrylate) (G-<i>g</i>-PMMA) at 392 °C, which may be due to the influence ofthe covalent addition of graphene, whereas the sacrificial initiator used to synthesize G-<i>graft</i>-PMMA (S) has low thermal stability as analyzed by TGA. A significant difference is noticed on their glass transition and melting temperatures by DSC. The controlled formation and structural features of the polymer-functionalized-graphene is characterized by Raman, FT-IR, UV-Vis spectroscopy, NMR, and zeta potential measurements. The wettability measurements of the novel G-<i>graft</i>-PMMA on leather surface were found to be better in hydrophobic nature with a water contact angle of 109 ± 1°. |
| first_indexed | 2024-03-10T20:33:19Z |
| format | Article |
| id | doaj.art-c56a728b199b4ae5adb7be6ae8dc3620 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T20:33:19Z |
| publishDate | 2020-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-c56a728b199b4ae5adb7be6ae8dc36202023-11-19T21:15:09ZengMDPI AGPolymers2073-43602020-04-0112487410.3390/polym12040874Copper (0) Mediated Single Electron Transfer-Living Radical Polymerization of Methyl Methacrylate: Functionalized Graphene as a Convenient Tool for Radical InitiatorAdhigan Murali0Srinivasan Sampath1Boopathi Appukutti Achuthan2Mohan Sakar3Suryanarayanan Chandrasekaran4N. Suthanthira Vanitha5R. Joseph Bensingh6M. Abdul Kader7Sellamuthu N. Jaisankar8School for Advanced Research in Polymers (SARP)-Advanced Research School for Technology and Product Simulation (ARSTPS), Central Institute of Plastics Engineering & Technology (CIPET), Ministry of Chemicals & Fertilizers, Govt. of India, Chennai 600032, IndiaDepartment of Materials Science, School of Technology, Central University of Tamil Nadu, Thiruvarur 610101, IndiaPolymer Science and Technology Division, Council of Scientific and Industrial Research (CSIR)-Central Leather Research Institute (CLRI), Adyar, Chennai 600020, IndiaCentre for Nano and Material Sciences, Jain University, Bangalore 562112, Karnataka, IndiaFaculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, AB T6G 2E1, CanadaDepartment of Electrical & Electronics Engineering, Muthayammal Engineering College (Autonomous), Namakkal 637408, Tamilnadu, IndiaSchool for Advanced Research in Polymers (SARP)-Advanced Research School for Technology and Product Simulation (ARSTPS), Central Institute of Plastics Engineering & Technology (CIPET), Ministry of Chemicals & Fertilizers, Govt. of India, Chennai 600032, IndiaSchool for Advanced Research in Polymers (SARP)-Advanced Research School for Technology and Product Simulation (ARSTPS), Central Institute of Plastics Engineering & Technology (CIPET), Ministry of Chemicals & Fertilizers, Govt. of India, Chennai 600032, IndiaPolymer Science and Technology Division, Council of Scientific and Industrial Research (CSIR)-Central Leather Research Institute (CLRI), Adyar, Chennai 600020, IndiaPolymer nanocomposites have been synthesized by the covalent addition of bromide-functionalized graphene (Graphene-Br) through the single electron transfer-living radical polymerization technique (SET-LRP). Graphite functionalized with bromide for the first time via an efficient route using mild reagents has been designed to develop a graphene based radical initiator. The efficiency of sacrificial initiator (ethyl α-bromoisobutyrate) has also been compared with a graphene based initiator towards monitoring their Cu(0) mediated controlled molecular weight and morphological structures through mass spectroscopy (MOLDI-TOF) and field emission scanning electron microscopy (FE-SEM) analysis, respectively. The enhancement in thermal stability is observed for graphene-grafted-poly(methyl methacrylate) (G-<i>g</i>-PMMA) at 392 °C, which may be due to the influence ofthe covalent addition of graphene, whereas the sacrificial initiator used to synthesize G-<i>graft</i>-PMMA (S) has low thermal stability as analyzed by TGA. A significant difference is noticed on their glass transition and melting temperatures by DSC. The controlled formation and structural features of the polymer-functionalized-graphene is characterized by Raman, FT-IR, UV-Vis spectroscopy, NMR, and zeta potential measurements. The wettability measurements of the novel G-<i>graft</i>-PMMA on leather surface were found to be better in hydrophobic nature with a water contact angle of 109 ± 1°.https://www.mdpi.com/2073-4360/12/4/874graphenesingle electron transferradical initiatorpoly(methyl methacrylate) |
| spellingShingle | Adhigan Murali Srinivasan Sampath Boopathi Appukutti Achuthan Mohan Sakar Suryanarayanan Chandrasekaran N. Suthanthira Vanitha R. Joseph Bensingh M. Abdul Kader Sellamuthu N. Jaisankar Copper (0) Mediated Single Electron Transfer-Living Radical Polymerization of Methyl Methacrylate: Functionalized Graphene as a Convenient Tool for Radical Initiator Polymers graphene single electron transfer radical initiator poly(methyl methacrylate) |
| title | Copper (0) Mediated Single Electron Transfer-Living Radical Polymerization of Methyl Methacrylate: Functionalized Graphene as a Convenient Tool for Radical Initiator |
| title_full | Copper (0) Mediated Single Electron Transfer-Living Radical Polymerization of Methyl Methacrylate: Functionalized Graphene as a Convenient Tool for Radical Initiator |
| title_fullStr | Copper (0) Mediated Single Electron Transfer-Living Radical Polymerization of Methyl Methacrylate: Functionalized Graphene as a Convenient Tool for Radical Initiator |
| title_full_unstemmed | Copper (0) Mediated Single Electron Transfer-Living Radical Polymerization of Methyl Methacrylate: Functionalized Graphene as a Convenient Tool for Radical Initiator |
| title_short | Copper (0) Mediated Single Electron Transfer-Living Radical Polymerization of Methyl Methacrylate: Functionalized Graphene as a Convenient Tool for Radical Initiator |
| title_sort | copper 0 mediated single electron transfer living radical polymerization of methyl methacrylate functionalized graphene as a convenient tool for radical initiator |
| topic | graphene single electron transfer radical initiator poly(methyl methacrylate) |
| url | https://www.mdpi.com/2073-4360/12/4/874 |
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