Single-Electron Transfer Living Radical Polymerization (SET−LRP) of Methyl Methacrylate (MMA) with a Typical RAFT Agent as an Initiator

2009 ◽  
Vol 42 (19) ◽  
pp. 7360-7366 ◽  
Author(s):  
Zhengbiao Zhang ◽  
Wenxiang Wang ◽  
Hongda Xia ◽  
Jian Zhu ◽  
Wei Zhang ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Methyl Methacrylate ◽  
Radical Polymerization ◽  
Living Radical Polymerization ◽  
Single Electron ◽  
Single Electron Transfer ◽  
Raft Agent

scholarly journals Copper (0) Mediated Single Electron Transfer-Living Radical Polymerization of Methyl Methacrylate: Functionalized Graphene as a Convenient Tool for Radical Initiator

Polymers ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 874 ◽  
Author(s):  
Adhigan Murali ◽  
Srinivasan Sampath ◽  
Boopathi Appukutti Achuthan ◽  
Mohan Sakar ◽  
Suryanarayanan Chandrasekaran ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Electron Transfer ◽  
Methyl Methacrylate ◽  
Radical Polymerization ◽  
Living Radical Polymerization ◽  
Single Electron ◽  
Single Electron Transfer ◽  
Functionalized Graphene ◽  
Radical Initiator ◽  
Vis Spectroscopy

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-g-PMMA) at 392 °C, which may be due to the influence ofthe covalent addition of graphene, whereas the sacrificial initiator used to synthesize G-graft-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-graft-PMMA on leather surface were found to be better in hydrophobic nature with a water contact angle of 109 ± 1°.

Trimethylsilyl-substituted triazole-based ligand for copper-mediated single-electron transfer living radical polymerization of methyl methacrylate

2014 ◽  
Vol 63 (10) ◽  
pp. 1869-1874 ◽  
Author(s):  
Preeyanuch Sangtrirutnugul ◽  
Kritdikul Wised ◽  
Purmpoon Maisopa ◽  
Nisalak Trongsiriwat ◽  
Pramuan Tangboriboonrat ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Methyl Methacrylate ◽  
Radical Polymerization ◽  
Living Radical Polymerization ◽  
Single Electron ◽  
Single Electron Transfer

scholarly journals Synthesis of Poly(lauryl acrylate) by Single-Electron Transfer/Degenerative Chain Transfer Living Radical Polymerization Catalyzed by Na2S2O4 in Water

2007 ◽  
Vol 208 (11) ◽  
pp. 1218-1227 ◽  
Author(s):  
Jorge F. J. Coelho ◽  
Erica Y. Carvalho ◽  
Dina S. Marques ◽  
Anatoliy V. Popov ◽  
Pedro M. Goncalves ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Radical Polymerization ◽  
Chain Transfer ◽  
Living Radical Polymerization ◽  
Single Electron ◽  
Single Electron Transfer ◽  
Degenerative Chain Transfer
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