| 第 37 卷第 2 期 |  | Vol. 37 No. 2 | | 2007 年 4 月 | Apr 2007 |
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所屬欄目：安全與環(huán)保
尼龍樹(shù)脂高分子季銨鹽的制備及其不溶性殺菌滅菌活性 |
| 王曉丹1，2，李 盛1，2，邱樹(shù)毅1，2，3，何 敏3，何 力3
（1.貴州省發(fā)酵工程與生物制藥重點(diǎn)實(shí)驗室，貴州 貴陽(yáng) 550003；2.貴州大學(xué) 化學(xué)工程學(xué)院，貴州 貴陽(yáng) 550003；3.貴州省材料創(chuàng )新基地，貴州 貴陽(yáng) 550000） |
| 摘 要：尼龍6用4-溴丁酰氯活化，再與高分子聚乙烯亞胺（PEI）在有機溶劑中進(jìn)行反應，使PEI共價(jià)接枝在載體上，然后用鹵代烷對接枝在尼龍6上的PEI進(jìn)行烷基化反應，使其形成具有殺菌功能的高分子季銨鹽，制備出尼龍樹(shù)脂固定化的高分子抗菌殺生劑。高分子抗菌殺生劑的抗菌滅藻性能的檢測結果表明，作用30 min對貴陽(yáng)市雅河水中的異養菌、氨化細菌、反硝化細菌、亞硝化細菌的殺菌率在90%以上，真菌、硫酸鹽還原菌的殺菌率在85%以上；對黑曲霉的殺菌率在84%，其作用24 h可將小球藻基本殺滅。 |
| 關(guān)鍵詞：尼龍；季銨鹽；殺菌劑 |
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| Preparation of a Novel Biocide Using Poly Quaternary Ammonium Salt Grafted Nylon |
| WANG Xiao-dan1，2，LI Sheng1，2，QIU Shu-yi1，2，3，HE Min3，HE Li3
（1. Guizhou Province Key Laboratory of Fermentation Engineering and Biopharmacy；2. Guizhou University；3. Guizhou Province Base of Material Innovation，Guiyang 550000，China） |
| Abstract：The nylon was activated with organic functional groups，and after that reacted with high-molecular-weight polyethylenimine（PEI）in the organic soleent. PEI was grafted covalently on the surface of nylon. The PEI grafted on the surface of nylon was modified by the alkyl halide such as bromohexane and iodomethane，to give high-molecular-weight antimicrobial quaternary ammonium salts. The bioassay results showed that the quaternary ammonium salt had a good intihtion against typical microorganisms such as heterotrophic bacteria，ammonifying bacteria，denitrifying bacteria and nitrosation bacteria with its inhibition rate was above 90%. Inhibition of the quaternary ammonium salt to fungi and sulfate reducting bacteria was above 85% after 30 min. Inhibition of the quaternary ammonium salt to black mold was about 84% after 30 min，and the to algae was totally inhibited after 24 h. |
| Key words：nylon；quaternary ammonium salts；biocide |
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基金項目：貴州省年度攻關(guān)材料專(zhuān)項基金資助項目（黔科合GY（2005）3038號），貴州省優(yōu)秀科技和教育人才省長(cháng)基金資助項目（黔省專(zhuān)合（2005）358號），貴州省優(yōu)秀科技人才培養對象專(zhuān)項基金資助項目（黔科合人字（2005）0524號）。
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作者簡(jiǎn)介：王曉丹（1980-），女，遼寧大連人，碩士研究生，研究方向：抗菌材料。（Email：wangxiaodan0516@126.com）
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聯(lián) 系 人：邱樹(shù)毅，教授。研究方向：抗菌材料。（Email：syqiu@gzu.edu.cn）
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收稿日期：2006-11-23
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