| SYNTHESES AND ANTIMICROBIAL ACTIVITY OF NOVEL POLYURETHANE IONOMERS |
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| 引用本文： | 陈雷,马文漪,余学海,杨昌正. SYNTHESES AND ANTIMICROBIAL ACTIVITY OF NOVEL POLYURETHANE IONOMERS[J]. 高分子科学, 1996, 0(3): 205-210 |
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| 作者姓名： | 陈雷 马文漪 余学海 杨昌正 |
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| 作者单位： | Institute of Chemistry and Chemical Engineering，Nanjing University，Nanjing 210093，Institute of Chemistry and Chemical Engineering，Nanjing University，Nanjing 210093，Institute of Chemistry and Chemical Engineering，Nanjing University，Nanjing 210093，Institute of Chemistry and Chemical Engineering，Nanjing University，Nanjing 210093 |
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| 摘 要： | This study is concerned with the removal of Staph aureus from water by polyurethaneionomers. All the samples are quaternary ammonium salts which possess a positive chargeon the surface. The ratio of the soft segment to diisocyanate and chain extender is 1:2:1and the ionization degree is 100%. The ionomers strongly capture microbial cells on theirsurfaces in a living state and the hydrophilicity of polymer matrix used in the studyenhanced the affinity of the polymer for bacterial cells. The adhesion of the microorganismto polymer was due mainly to electrostatic interaction between them. The calculation ofthe viable cell count showed that D value for Staph.aureus is not proportional to the nitro-gen concentration. The microorganism capture ability of pyridinium-containing polymer isgreater than that of piperazine based samples.
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| 收稿时间： | 1995-02-28 |
SYNTHESES AND ANTIMICROBIAL ACTIVITY OF NOVEL POLYURETHANE IONOMERS |
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| CHEN Lei,MA Wenyi,YU Xuehai,YANG Changzheng. SYNTHESES AND ANTIMICROBIAL ACTIVITY OF NOVEL POLYURETHANE IONOMERS[J]. Chinese Journal of Polymer Science, 1996, 0(3): 205-210 |
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| Authors: | CHEN Lei MA Wenyi YU Xuehai YANG Changzheng |
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| Affiliation: | Institute of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210093 |
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| Abstract: | This study is concerned with the removal of Staph aureus from water by polyurethaneionomers. All the samples are quaternary ammonium salts which possess a positive chargeon the surface. The ratio of the soft segment to diisocyanate and chain extender is 1:2:1and the ionization degree is 100%. The ionomers strongly capture microbial cells on theirsurfaces in a living state and the hydrophilicity of polymer matrix used in the studyenhanced the affinity of the polymer for bacterial cells. The adhesion of the microorganism to polymer was due mainly to electrostatic interaction between them.The calculation of the viable all count showed that D value for Staph·aureus is not proportional to the nitrogen concentration.The microorganism capture ability of pyridinium-containing polymer is greater than that of piperazine based samples. |
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