Synthesis of an Acrylamide Copolymer Containing Nano-SiO2 by Ex Situ Cu(0)-Mediated SET-LRP
We report herein the synthesis of a novel star-shaped copolymer containing nano-SiO2 by single-electron transfer living radical polymerization (SET-LRP) in aqueous solution. The effects of polymerization conditions, such as the total amounts and molar ratios of the monomer, initiator, catalyst, liga...
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | International Journal of Polymer Science |
| Online Access: | http://dx.doi.org/10.1155/2019/7379368 |
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| _version_ | 1832562180394844160 |
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| author | Ling Wang Zhendong Li Pingsen Huang Wei Ding |
| author_facet | Ling Wang Zhendong Li Pingsen Huang Wei Ding |
| author_sort | Ling Wang |
| collection | DOAJ |
| description | We report herein the synthesis of a novel star-shaped copolymer containing nano-SiO2 by single-electron transfer living radical polymerization (SET-LRP) in aqueous solution. The effects of polymerization conditions, such as the total amounts and molar ratios of the monomer, initiator, catalyst, ligand, and modified nano-SiO2, have been investigated through a series of experiments. The prepared acrylamide copolymers have been characterized by FTIR spectroscopy and 1H NMR spectrometry. The properties of the copolymers have been assessed by viscometry and rheometry. The results confirmed that the nano-SiO2 functional monomer was successfully combined in the SET-LRP. The optimum polymerization conditions were established through orthogonal experiments as a ratio of [AM] : [DMAEMA] : [I] : [CuBr] : [Me6TREN] of 674.4 : 35.5 : 1 : 1 : 2 at a total concentration of [AM] + [DMAEMA] of 2.5 mol/L. The appropriate concentration of the nano-SiO2 functional monomer (NSFM) was 0.5 wt% with respect to AM + DMAEMA. The rheology of the star-shaped copolymer exhibited a shear-thickening property when the shear rate exceeded a critical value (100 s−1). The AM/DMAEMA/NSFM copolymer displayed a higher viscosity than AM/DMAEMA at the same concentration. It was found that AM/DMAEMA/NSFM exhibited better salt and temperature tolerances. |
| format | Article |
| id | doaj-art-4b98ec3fa38b4e41979e5ae3a2a2a59d |
| institution | Kabale University |
| issn | 1687-9422 1687-9430 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Polymer Science |
| spelling | doaj-art-4b98ec3fa38b4e41979e5ae3a2a2a59d2025-02-03T01:23:08ZengWileyInternational Journal of Polymer Science1687-94221687-94302019-01-01201910.1155/2019/73793687379368Synthesis of an Acrylamide Copolymer Containing Nano-SiO2 by Ex Situ Cu(0)-Mediated SET-LRPLing Wang0Zhendong Li1Pingsen Huang2Wei Ding3Provincial Key Laboratory of Oil & Gas Chemical Technology, Chemistry and Chemical Engineering College of Northeast Petroleum University, Daqing 163318, ChinaProvincial Key Laboratory of Oil & Gas Chemical Technology, Chemistry and Chemical Engineering College of Northeast Petroleum University, Daqing 163318, ChinaProvincial Key Laboratory of Oil & Gas Chemical Technology, Chemistry and Chemical Engineering College of Northeast Petroleum University, Daqing 163318, ChinaProvincial Key Laboratory of Oil & Gas Chemical Technology, Chemistry and Chemical Engineering College of Northeast Petroleum University, Daqing 163318, ChinaWe report herein the synthesis of a novel star-shaped copolymer containing nano-SiO2 by single-electron transfer living radical polymerization (SET-LRP) in aqueous solution. The effects of polymerization conditions, such as the total amounts and molar ratios of the monomer, initiator, catalyst, ligand, and modified nano-SiO2, have been investigated through a series of experiments. The prepared acrylamide copolymers have been characterized by FTIR spectroscopy and 1H NMR spectrometry. The properties of the copolymers have been assessed by viscometry and rheometry. The results confirmed that the nano-SiO2 functional monomer was successfully combined in the SET-LRP. The optimum polymerization conditions were established through orthogonal experiments as a ratio of [AM] : [DMAEMA] : [I] : [CuBr] : [Me6TREN] of 674.4 : 35.5 : 1 : 1 : 2 at a total concentration of [AM] + [DMAEMA] of 2.5 mol/L. The appropriate concentration of the nano-SiO2 functional monomer (NSFM) was 0.5 wt% with respect to AM + DMAEMA. The rheology of the star-shaped copolymer exhibited a shear-thickening property when the shear rate exceeded a critical value (100 s−1). The AM/DMAEMA/NSFM copolymer displayed a higher viscosity than AM/DMAEMA at the same concentration. It was found that AM/DMAEMA/NSFM exhibited better salt and temperature tolerances.http://dx.doi.org/10.1155/2019/7379368 |
| spellingShingle | Ling Wang Zhendong Li Pingsen Huang Wei Ding Synthesis of an Acrylamide Copolymer Containing Nano-SiO2 by Ex Situ Cu(0)-Mediated SET-LRP International Journal of Polymer Science |
| title | Synthesis of an Acrylamide Copolymer Containing Nano-SiO2 by Ex Situ Cu(0)-Mediated SET-LRP |
| title_full | Synthesis of an Acrylamide Copolymer Containing Nano-SiO2 by Ex Situ Cu(0)-Mediated SET-LRP |
| title_fullStr | Synthesis of an Acrylamide Copolymer Containing Nano-SiO2 by Ex Situ Cu(0)-Mediated SET-LRP |
| title_full_unstemmed | Synthesis of an Acrylamide Copolymer Containing Nano-SiO2 by Ex Situ Cu(0)-Mediated SET-LRP |
| title_short | Synthesis of an Acrylamide Copolymer Containing Nano-SiO2 by Ex Situ Cu(0)-Mediated SET-LRP |
| title_sort | synthesis of an acrylamide copolymer containing nano sio2 by ex situ cu 0 mediated set lrp |
| url | http://dx.doi.org/10.1155/2019/7379368 |
| work_keys_str_mv | AT lingwang synthesisofanacrylamidecopolymercontainingnanosio2byexsitucu0mediatedsetlrp AT zhendongli synthesisofanacrylamidecopolymercontainingnanosio2byexsitucu0mediatedsetlrp AT pingsenhuang synthesisofanacrylamidecopolymercontainingnanosio2byexsitucu0mediatedsetlrp AT weiding synthesisofanacrylamidecopolymercontainingnanosio2byexsitucu0mediatedsetlrp |