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Synthesis and characterization of a polyurethane ionene/zinc chloride complex with antibacterial properties

机译：抗菌性质的聚氨酯IONENE /氯化锌络合物的合成与表征

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摘要

The 1,6-bis(N', N-dimethyl-3-hydroxylpropyl) ammonium chloride (BQAC-diol)/zinc chloride complex was first synthesized and used as an ionic monomer to synthesize a polyurethane ionene/zinc chloride (PUI/ZnCl2) complex via its polymerization with poly(ethylene glycol) (PEG), 1,4-butanediol (BDO), and 4,4'-diphenylmethane diisocyanate (MDI). The structure and properties of the PUI/ZnCl2 complex were characterized systematically by NMR, intrinsic viscosity, thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), polarized optical microscopy (POM), and tensile testing, and the antibacterial properties were investigated using a cylinder-plate method. The results indicated that the crystallization rate of PUI/ZnCl2 increased gradually with increasing content of ionic units, which was ascribed to the increased crystal growth rate as evidenced by POM observation. The morphology analyzed by scanning electron microscopy indicated that no apparent microphase separation occurred for the complex and ZnCl2 dispersed at a molecular level in the PUI matrix, since no particle-like species can be observed. Antibacterial properties measurement showed that the PUI containing quaternary ammonium salt cation has no antibacterial activity but the coexistence of ZnCl2 and cation exhibit a synergetic effect with respect to the antibacterial activity.
机译：的1,6-双（N”，N-二甲基-3-羟基丙基）氯化铵（BQAC二醇）/氯化锌配合物第一合成和使用作为离子单体来合成聚氨酯的紫罗烯/氯化锌（PUI /氯化锌）通过与聚（乙二醇）（PEG），1,4-丁二醇（BDO）和4,4'-二苯基甲烷二异氰酸酯（MDI）的聚合复合物。通过NMR，本征粘度，热重分析（TGA），差示光学显微镜（DSC），偏振光显微镜（POM），偏振性能和拉伸试验以及使用抗菌性能的特征和性质气缸板方法。结果表明，随着离子单位的含量增加，普洱/ ZnCl2的结晶率逐渐增加，其归因于POM观察的增加的晶体生长速度。通过扫描电子显微镜分析的形态表明，在PUI基质中分散在PUI基质中的分子水平下的复合物和ZnCl2没有明显的微相分离，因为不能观察到颗粒状物质。抗菌性质测量表明，含钙季铵盐阳离子的钙盐没有抗菌活性，但ZnCl2和阳离子的共存表现出相对于抗菌活性的协同效应。

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  • 来源
    《RSC Advances》 |2015年第16期|共11页
  • 作者

    Ding Bu-Peng; Wu Fang; Chen Si-Chong; Wang Yu-Zhong; Zeng Jian-Bing;

  • 作者单位

    Sichuan Univ Ctr Degradable &

    Flame Retardant Polymer Mat ERCP Natl Engn Lab Ecofriendly Polymer Mat Sichuan Coll Chem State Key Lab Polymer Mat Engn Chengdu 610064 Peoples R China;

    Sichuan Univ Ctr Degradable &

    Flame Retardant Polymer Mat ERCP Natl Engn Lab Ecofriendly Polymer Mat Sichuan Coll Chem State Key Lab Polymer Mat Engn Chengdu 610064 Peoples R China;

    Sichuan Univ Ctr Degradable &

    Flame Retardant Polymer Mat ERCP Natl Engn Lab Ecofriendly Polymer Mat Sichuan Coll Chem State Key Lab Polymer Mat Engn Chengdu 610064 Peoples R China;

    Sichuan Univ Ctr Degradable &

    Flame Retardant Polymer Mat ERCP Natl Engn Lab Ecofriendly Polymer Mat Sichuan Coll Chem State Key Lab Polymer Mat Engn Chengdu 610064 Peoples R China;

    Southwest Univ Coll Chem &

    Chem Engn Chongqing 400715 Peoples R China;

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  • 正文语种 eng
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