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首页> 外文期刊>Journal of Polymers and the Environment >Novel Glycopolymers Based on d-Mannose and Methacrylates: Synthesis, Thermal Stability and Biodegradability Testing
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Novel Glycopolymers Based on d-Mannose and Methacrylates: Synthesis, Thermal Stability and Biodegradability Testing

机译：基于d-甘露糖和甲基丙烯酸酯的新型糖聚合物：合成，热稳定性和生物降解性测试

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摘要

This paper presents the synthesis, thermal stability and biodegradability of new d-mannose glycopolymers. These glycopolymers have been obtained by free radical bulk copolymerization of d-mannose based glycomonomer, 1-O-(2′-hydroxy-3′-methacryloyloxypropyl)-2,3:5,6-di-O-isopropylidene-d-mannofuranose (Mm), and respectively d-mannose derived oligomer (Mo) with methyl methacrylate and respectively 2-hydroxypropyl methacrylate. The chemical structures of Mm and Mo have been confirmed via FTIR, 1H-NMR and HPLC–MS spectroscopy. The copolymerization process has been investigated using differential scanning calorimetry, which allowed calculating the activation energies by applying Kissinger–Akahira–Sunose method. The glycopolymers are thermally stable, fact assessed by TG analysis; their glass transition temperature exceeds 50 °C, so they are part of the glassy class of polymers. The biodegradability of these glycopolymers has been investigated in vitro, using pure cultures of Zymomonas mobilis and Trichoderma reesei. The glycopolymers lose up to 55 % weight in just 14 days of incubation as their surface and composition is altered by colonies of microorganisms that grow on/into them, fact demonstrated using SEM/EDX.
机译：本文介绍了新型d-甘露糖糖聚合物的合成，热稳定性和生物降解性。这些糖聚合物是通过基于d-甘露糖的糖单体1-O-（2'-羟基-3'-甲基丙烯酰氧基丙基）-2,3：5,6-二-O-异亚丙基-d-甘露糖醛的自由基本体共聚而获得的。 （Mm），以及分别由d-甘露糖衍生的低聚物（Mo）与甲基丙烯酸甲酯和甲基丙烯酸2-羟丙酯。 Mm和Mo的化学结构已通过FTIR，1H-NMR和HPLC-MS光谱进行了确认。已经使用差示扫描量热法研究了共聚过程，该方法可以通过使用Kissinger-Akahira-Sunose方法计算活化能。糖聚合物是热稳定的，通过TG分析评估事实；它们的玻璃化转变温度超过50°C，因此它们是玻璃状聚合物的一部分。使用运动发酵单胞菌和里氏木霉的纯培养物体外研究了这些糖聚合物的生物降解性。使用SEM / EDX可以证明，由于在表面上和内部生长的微生物菌落改变了糖基聚合物的表面和组成，因此在孵育后的14天之内它们就失去了55％的重量。

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  • 来源
    《Journal of Polymers and the Environment》 |2013年第4期|981-994|共14页
  • 作者

    Ana-Maria Pană; Liliana-Marinela Ştefan; Geza Bandur; Paula Sfîrloagă; Vasile Gherman; Mihaela Silion; Marcel Popa; Lucian-Mircea Rusnac;

  • 作者单位

    Department of Natural and Synthetic Polymers Faculty of Chemical Engineering and Environmental Protection “Gheorghe Asachi” Technical University">(1);

    Institute of Chemistry Timisoara of Romanian Academy">(2);

    Institute of Chemistry Timisoara of Romanian Academy">(2);

    Faculty of Industrial Chemistry and Environmental Engineering “Politehnica” University of Timişoara">(3);

    Faculty of Industrial Chemistry and Environmental Engineering “Politehnica” University of Timişoara">(3);

    The Institute of Research for Condensed Matter">(4);

    Faculty of Industrial Chemistry and Environmental Engineering “Politehnica” University of Timişoara">(3);

    “Petru Poni” Institute of Macromolecular Chemistry">(5);

    Department of Natural and Synthetic Polymers Faculty of Chemical Engineering and Environmental Protection “Gheorghe Asachi” Technical University">(1);

    Faculty of Industrial Chemistry and Environmental Engineering “Politehnica” University of Timişoara">(3);

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Glycopolymers; d-Mannose; DSC; TG; Biodegradability;

    机译：糖聚合物;d-甘露糖;DSC;TG;生物降解性;

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