Synthesis, characterization, and properties of copolymers of acrylamide with sodium 2-acrylamido-2-methylpropane sulfonate with nano silica structure

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• 作者：Haipeng Xin ; Dun Ao ; Xiaojin Wang ; Yuejun Zhu ; Jian Zhang…
• 关键词：Water ; soluble copolymer ; Lower crosslinked polymer ; Temperature tolerance ; Shearing tolerance ; Salt resistance
• 刊名：Colloid & Polymer Science
• 出版年：2015
• 出版时间：May 2015
• 年：2015
• 卷：293
• 期：5
• 页码：1307-1316
• 全文大小：3,158 KB
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• 作者单位：Haipeng Xin (1) (2)
  Dun Ao (1) (2)
  Xiaojin Wang (1) (2)
  Yuejun Zhu (3)
  Jian Zhang (3)
  Yebang Tan (1) (2)
  
  1. School of Chemistry and Chemical Engineering, Shandong University, 250100, Jinan, China
  2. Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, Shandong University, 250100, Jinan, China
  3. Technology Research Department, CNOOC Research Center, State Key Laboratory of Offshore Oil Exploitation, 100027, Beijing, China
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Polymer Sciences
  Physical Chemistry
  Soft Matter and Complex Fluids
  Characterization and Evaluation Materials
  Food Science
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1435-1536

文摘

A novel water-soluble poly(acrylamide-co-sodium 2-acrylamido-2-methylpropane sulfonate) was synthesized by the emulsion copolymerization of acrylamide with sodium 2-acrylamido-2-methyl propane sulfonate using triethoxy(vinyl)silane modified nano silica as cross-linking agent. The structure, composition, thermal stability, and molecular weight of these copolymers were characterized by 1HNMR spectrum, infrared spectra, elemental analysis, thermal gravimetric analysis, and light scattering. Static light scattering measurements showed that the copolymers had relatively high molecular weight (Mw-gt;-?×-06?g?mol?). The solution properties of the copolymers were studied by viscosity measurement. The copolymers with nano silica structure possessed better viscosity properties and degradation resistance than linear copolymer. And the optimal feeding weight of modified nano silica was 0.10?g to obtain the lower crosslinked copolymer with effective thickening properties, temperature, and tolerance as well as salt resistance, indicting its potential application in enhanced oil recovery.