| Effects of Ethylene Oxide Spacer Length on solution Properties of Water—Soluble Fluorocarbon—Containing Hydrophobically Associating Poly（Acrylic Acid—co—Rf—PEG Macromonomer） |
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| 引用本文： | 杜立斌,庄东青,刘寿平,章云祥.Effects of Ethylene Oxide Spacer Length on solution Properties of Water—Soluble Fluorocarbon—Containing Hydrophobically Associating Poly（Acrylic Acid—co—Rf—PEG Macromonomer）[J].中国化学,2003,21(6):698-705. |
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| 作者姓名： | 杜立斌 庄东青 刘寿平 章云祥 |
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| 作者单位： | ShanghaiInstituteofOrganicChemistry,ChineseAcademyofSciences,Shanghai200032,China |
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| 基金项目： | ProjectsupportedbytheNationalNaturalScienceFoundationofChina (No .5 9973 0 2 5 ) |
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| 摘 要： | Poly(acrylic acid)s (PAAs) modified with a series of fluorocarbon group (Rf) end-capped Poly(ethylene glycol) (PEG) macromonomers(number of ethylene oxide unit:1,9,23,45) and corresponding copolymers without fluorocarbon end groups were synthesized.It was found that the effect of the hydrophobic association of fluorocarbon groups on the solution viscosity prevailed over that of the hydrogen bond between grafted PEG and the backbone.Rheological measurement on the aqueous solutions of these poly(acrylic acid-co-Rf-PEG macromonomer) s demonstrated that the best thickening performance was shown when the number of ethylene oxide unit (EO number) was 23.
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| 关 键 词： | 环氧乙烷 隔离物 溶液 碳氟化合物 疏水性橡胶 聚合反应 聚（丙烯酸－co－Rf－PEG宏观单体） 乙烯基已二醇 |
Effects of Ethylene Oxide Spacer Length on Solution Properties of Water-Soluble Fluorocarbon-Containing Hydrophobically Associating Poly(Acrylic Acid-co-R_f-PEG Macromonomer) |
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| Du Li‐Bin,Zhuang Dong‐Qing,Liu Shou‐Ping,Zhang Yun‐Xiang.Effects of Ethylene Oxide Spacer Length on Solution Properties of Water-Soluble Fluorocarbon-Containing Hydrophobically Associating Poly(Acrylic Acid-co-R_f-PEG Macromonomer)[J].Chinese Journal of Chemistry,2003,21(6):698-705. |
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| Authors: | Du Li‐Bin Zhuang Dong‐Qing Liu Shou‐Ping Zhang Yun‐Xiang |
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| Abstract: | Poly(acrylic acid)s (PAAs) modified with a series of fluorocarbon group (R f) end capped Poly(ethylene glycol) (PEG) macromonomers (number of ethylene oxide unit: 1, 9, 23, 45) and corresponding copolymers without fluorocarbon end groups were synthesized. It was found that the effect of the hydrophobic association of fluorocarbon groups on the solution viscosity prevailed over that of the hydrogen bond between grafted PEG and the backbone. Rheological measurement on the aqueous solutions of these poly(acrylic acid co R f PEG macromonomer)s demonstrated that the best thickening performance was shown when the number of ethylene oxide unit (EO number) was 23. |
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| Keywords: | fluorocarbon containing PEG macromonomer spacer rheological property hydrophobic association |
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