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首页> 外文期刊>Journal of Polymers and the Environment >Synthesis and Characterization of Carboxymethyl Cellulose from Tunisian Vine Stem: Study of Water Absorption and Retention Capacities
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Synthesis and Characterization of Carboxymethyl Cellulose from Tunisian Vine Stem: Study of Water Absorption and Retention Capacities

机译：突尼斯藤茎中羧甲基纤维素的合成与表征：吸水和持水能力的研究

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摘要

The aim of this work was to study the effect of the degree of substitution (DS) and the purity of sodium carboxymethyl cellulose (CMCNa) prepared from Tunisian vine stem on the absorption and retention of water. Vine stem was first delignified using souda-anthraquione, then bleached and finally chemically modified, in order to synthesize different CMCNa derivatives. The carboxymethylation reaction was carried out in presence of NaOH (40 %) and monochloroacetic acid (ClCH2COOH), in n-butanol as a reaction solvent. The obtained CMCNa derivatives were characterized using different tools such as the DS, Fourier transforms IR techniques, CP-MAS C-13-NMR, the exchange capacity as well as the determination of modification reaction yield. The performance of the prepared derivatives in term of absorption capacities and retention capacities was established. The performance of CMCNa derivatives was compared with that achieved by commercial counterparts and it was concluded that the prepared ones exerted higher efficiency.
机译：这项工作的目的是研究由突尼斯藤茎制备的取代度（DS）和羧甲基纤维素钠（CMCNa）的纯度对水分吸收和保留的影响。首先使用苏打-蒽醌对葡萄干进行脱木质素处理，然后对其进行漂白和化学修饰，以合成不同的CMCNa衍生物。在作为反应溶剂的正丁醇中，在NaOH（40％）和一氯乙酸（ClCH2COOH）的存在下进行羧甲基化反应。使用DS，傅里叶变换红外技术，CP-MAS C-13-NMR，交换容量以及改性反应产率的测定等不同工具对所得CMCNa衍生物进行表征。建立了制备的衍生物在吸收容量和保留容量方面的性能。将CMCNa衍生物的性能与市售同类产品进行了比较，得出的结论是所制备的CMCNa衍生物具有较高的效率。

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  • 来源
    《Journal of Polymers and the Environment》 |2015年第2期|190-198|共9页
  • 作者

    Mansouri S.; Khiari R.; Bettaieb F.; El-Gendy A. A.; Mhenni F.;

  • 作者单位

    Univ Monastir, Fac Sci, Dept Chem, Res Unity Appl Chem & Environm, Monastir 5019, Tunisia;

    Univ Monastir, Fac Sci, Dept Chem, Res Unity Appl Chem & Environm, Monastir 5019, Tunisia|Grenoble INP Pagora, UMR CNRS 5518, Lab Genie Proc Papetiers LGP2, F-38402 St Martin Dheres, France;

    Univ Monastir, Fac Sci, Dept Chem, Res Unity Appl Chem & Environm, Monastir 5019, Tunisia|Grenoble INP Pagora, UMR CNRS 5518, Lab Genie Proc Papetiers LGP2, F-38402 St Martin Dheres, France;

    Natl Res Ctr, Cellulose & Paper Dept, Giza, Egypt;

    Univ Monastir, Fac Sci, Dept Chem, Res Unity Appl Chem & Environm, Monastir 5019, Tunisia;

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  • 正文语种 eng
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  • 关键词

    Vine stem; Cellulose; CMCNa; Degree of substitution (DS); Exchange capacity; Absorption capacity; Retention capacity;

    机译：藤茎;纤维素;CMCNa;取代度（DS）;交换能力;吸收能力;保留能力;

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