| N,N-Dilauryl Chitosan：Synthesis and Surface Pressure-area Isotherm |
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| 引用本文： | XINMei-hua WANGMin LIMing-chun LIUChao SUNDuo-xia MITSUISHIMasaya MIYASHITATokuji. N,N-Dilauryl Chitosan：Synthesis and Surface Pressure-area Isotherm[J]. 高等学校化学研究, 2004, 20(2): 210-212 |
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| 作者姓名： | XINMei-hua WANGMin LIMing-chun LIUChao SUNDuo-xia MITSUISHIMasaya MIYASHITATokuji |
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| 作者单位： | [1]CollegeofMaterialScienceandEngineering,HuaqiaoUniversity,Quanzhou362011,P.R.China [2]CollegeofChemicalEngineering,TianjinUniversity,Tianjin,300072,P.R.China [3]InstituteofMultidisciplinaryResearchforAdvancedMaterials,TohokuUniversity,Sendai,Japan |
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| 基金项目： | 国家自然科学基金，福建省科研项目，福建省自然科学基金 |
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| 摘 要： | With sodium dodecyl sulfonate(SDS) as the phase transferring catalyst, N,N-Dilauryl chitosans with a high degree of alkyl group substitution were prepared and characterized by means of FTIR, ^1H NMR and elemental analyses. The results indicate that the average degree of alkyl group substitution on the chitosan increases with decreasing the molecular weight of the chitosan. The fully N,N-dilaurylated chitosan was found to be dissolvable in chloroform. The collapsed pressures of the samples derived from chitosan with 3000,5000 and 10000 dalton are 47.6, 48. 2 and 51.0 mN/m, respectively. The surface area occupied by the monomer unit(glucosamine) of all. those samples is 0:6 nm^2.
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| 关 键 词： | N N-二月桂基壳聚糖 压力区 等温线 合成 |
N,N-Dilauryl Chitosan:Synthesis and Surface Pressure-area Isotherm |
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| XIN Mei-hua,WANG Min,LI Ming-chun,LIU Chao,SUN Duo-xian,MITSUISHI Masaya,MIYASHITA Tokuji. N,N-Dilauryl Chitosan:Synthesis and Surface Pressure-area Isotherm[J]. Chemical Research in Chinese University, 2004, 20(2): 210-212 |
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| Authors: | XIN Mei-hua WANG Min LI Ming-chun LIU Chao SUN Duo-xian MITSUISHI Masaya MIYASHITA Tokuji |
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| Abstract: | With sodium dodecyl sulfonate(SDS) as the phase transferring catalyst, N,N-Dilauryl chitosans with a high degree of alkyl group substitution were prepared and characterized by means of FTIR, 1H NMR and elemental analyses. The results indicate that the average degree of alkyl group substitution on the chitosan increases with decreasing the molecular weight of the chitosan. The fully N,N-dilaurylated chitosan was found to be dissolvable in chloroform. The collapsed pressures of the samples derived from chitosan with 3000,5000 and 10000 dalton are 47.6, 48.2 and 51.0 mN/m, respectively. The surface area occupied by the monomer unit (glucosamine) of all those samples is 0.6 nm2. |
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| Keywords: | N N-Dilauryl chitosan Synthesis Isotherm |
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