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    方媛, 朱琳琳, 危大福, 郑安呐, 胡福增, 管涌. 抗菌淀粉-聚乙烯醇水凝胶的制备及性能[J]. 功能高分子学报, 2011, 24(3): 280-287.
    引用本文: 方媛, 朱琳琳, 危大福, 郑安呐, 胡福增, 管涌. 抗菌淀粉-聚乙烯醇水凝胶的制备及性能[J]. 功能高分子学报, 2011, 24(3): 280-287.
    shu
    FANG Yuan, ZHU Lin-lin, WEI Da-fu, ZHENG An-na, HU Fu-zeng, GUAN Yong. Preparation and Properties of Antimicrobial Starch-PVA Hydrogel[J]. Journal of Functional Polymers, 2011, 24(3): 280-287.
    Citation: FANG Yuan, ZHU Lin-lin, WEI Da-fu, ZHENG An-na, HU Fu-zeng, GUAN Yong. Preparation and Properties of Antimicrobial Starch-PVA Hydrogel[J]. Journal of Functional Polymers, 2011, 24(3): 280-287.
    shu

    抗菌淀粉-聚乙烯醇水凝胶的制备及性能

    Preparation and Properties of Antimicrobial Starch-PVA Hydrogel

      摘要
    • 摘要: 以环氧氯丙烷为键合剂将胍盐低聚物(PHMG)接枝到淀粉分子上，设计了正交试验优化接枝反应条件。将产物添加到淀粉和聚乙烯醇(PVA)水溶液中，采用化学交联法合成了具有抗菌性能的淀粉-聚乙烯醇(S-PVA)水凝胶，测试了水凝胶的溶胀率、脱水率以及抗菌性能。结果表明：当反应温度为40 °C、时间为0.5 h、pH为9时，PHMG的接枝效率最高，水凝胶的溶胀率随着PVA含量的增大而减小，随着交联剂用量的增加呈现先增大后减小的趋势。S-PVA水凝胶对大肠杆菌和金黄色葡萄球菌均显示出了优异的抗菌活性，当w(PHMG)=0.2%时，抑菌率达到100%。

       

      Abstract: Starch grafted oligoguanidine (S-PHMG) was synthesized using epichlorohydrin as the bonding agent. Orthogonal tests were applied to optimize the reaction conditions. Antimicrobial starch-PVA hydrogels were synthesized from chemical crosslinked of starch, PVA and S-PHMG. The reswelling rate, dewatering rate and antimicrobial activity were determined. Results showed that the grafting efficiency could reach 22.15% at the optimal conditions: temperature 40 °C, time 0.5 h, pH=9. The reswelling rates of the hydrogels decreased with the increasing of PVA content, while increased at first and then decreased with the increasing of the crosslinker contents. S-PVA hydrogels exhibited high antimicrobial activities against both E. coli and S. aureus. When w(PHMG)=0.2%, the growth inhibition reached 100%.

       

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