| Synthesis of Hydrophobically Modified Poly（acrylic acid） gels and Interaction of the gels with Cationic／Anionic Surfactants |
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| 引用本文： | 田琴,唐小真,庄东青,章云祥.Synthesis of Hydrophobically Modified Poly（acrylic acid） gels and Interaction of the gels with Cationic／Anionic Surfactants[J].中国化学,2002,20(10):1088-1096. |
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| 作者姓名： | 田琴 唐小真 庄东青 章云祥 |
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| 作者单位： | [1]DepartmentofPolymerScience,ShanghaiInstiuteofOrgnicChemistry,ChineseAcademyofSciences,Shanghai200032,China [2]SchoolofChemistryandChemicalTechnology,ShanghaiJiaoTongUniversity,Shanghai200240,China |
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| 基金项目： | ProjectsupportedbytheNationalNaturalScienceFoundationofChina (No.5 99730 2 5 ) |
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| 摘 要： | Poly(acrylic acid)(PAA) gel network with only chemical crosslinking and hydorophobically modified PAA(HM-PAA)gels with both chemical and physical crosslinking were synthesized by radical polymerization in tert-butanol,using ethylene glycol dimethacrylate (EGDMA) as crossliker,and 2-(N-ethylperfluorooctanesulfoamido)ethyl methacrylate (FMA),stearyl acrylate (SA) or lauryl acrylate (LA) as Hydrophobic comonomer respectively.The effcet of the fractions and the species of the hydrophobes on swelling properties of HM-PAA gels and the interaction of gels and surfactants were studied.The results showed that the swelling ratio of HM-PAA gels exhibited a sharp decrease with increasing hydrophobic comomomer comcentration,Which Could be sacribed to the formation of strong hydrophobic association among hydrophobic groups.It was proved that two kinds of binding mechanisms of surfactan/gel and different kinds of hydrophobic clusters existed in gels containing both physical and chemical networks.
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| 关 键 词： | 聚丙烯酸 合成 聚合物凝胶网络 疏水修饰 表面活性剂 |
Synthesis of Hydrophobically Modified Poly(acrylic acid) Gels and Interaction of the Gels with Cationic/Anionic Surfactants |
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| TIAN,Qin a TANG,Xiao-Zhen ZHUANG,Dong-Qing ZHANG,Yun-Xiang a School of Chemistry and Chemical Technology,Shanghai Jiao Tong University,Shanghai ,China b.Synthesis of Hydrophobically Modified Poly(acrylic acid) Gels and Interaction of the Gels with Cationic/Anionic Surfactants[J].Chinese Journal of Chemistry,2002,20(10):1088-1096. |
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| Authors: | TIAN Qin a TANG Xiao-Zhen ZHUANG Dong-Qing ZHANG Yun-Xiang a School of Chemistry and Chemical Technology Shanghai Jiao Tong University Shanghai China b |
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| Institution: | TIAN,Qin a TANG,Xiao-Zhen ZHUANG,Dong-Qing ZHANG,Yun-Xiang a School of Chemistry and Chemical Technology,Shanghai Jiao Tong University,Shanghai 200240,China b Department of Polymer Science,Shanghai Institute of Organic Chemistry,Ch |
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| Abstract: | Poly(acrylic acid) (PAA) gel network with only chemical crosslinking and hydrophobically modified PAA (HM-PAA) gels with both chemical and physical crosslinking were synthesized by radical polymerization in tert-butanol, using ethylene glycol dimethacrylate (EGDMA) as crosslinker, and 2-(N-ethylperfluorooctanesulfoamido)ethyl methacrylate (FMA), stearyl acrylate (SA) or lauryl acrylate (LA) as hydrophobic comonomer respectively. The effect of the fractions and the species of the hydrophobes on swelling properties of HM-PAA gels and the interaction of gels and surfactants were studied. The results showed that the swelling ratio of HM-PAA gels exhibited a sharp decrease with increasing hydrophobic comonomer concentration, which could be ascribed to the formation of strong hydrophobic association among hydrophobic groups. It was proved that two kinds of binding mechanisms of surfactant/gel and different kinds of hydrophobic clusters existed in gels containing both physical and chemical networks. |
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| Keywords: | hydrophobic association acrylic acid hydrogel surfactant equilibrium swelling ratio |
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