中国塑料 ›› 2020, Vol. 34 ›› Issue (10): 12-17.DOI: 10.19491/j.issn.1001-9278.2020.10.003

• 材料与性能 • 上一篇    下一篇

纯亲水自组装体构建抗菌纳米材料

杨禄1,2(), 陈韩婷1   

  1. 1.江南大学化学与材料工程学院,江苏 无锡 214122
    2.无锡麦克罗新材料科技有限公司,江苏 无锡 214122
  • 收稿日期:2020-04-01 出版日期:2020-10-26 发布日期:2020-10-26

Fabrication of Antibacterial Nanomaterials via Pure Hydrophilic Self⁃assembly

YANG LU1,2(), CHEN Hanting1   

  1. 1.School of Chemical and Material Engineering,Jiangnan University,Wuxi 214122,China
    2.Wuxi MACRO NMS Co,Ltd,Wuxi 214122,China
  • Received:2020-04-01 Online:2020-10-26 Published:2020-10-26
  • Contact: YANG LU E-mail:luyang06@126.com

摘要:

以纯亲水无规共聚物poly(DMAEMA-co-AA)在纯水相中诱导自组装,构建出可用于负载抗菌活性成分的纳米自组装体。结果表明,当AA 链段质量分数为51.6 %时poly(DMAEMA-co-AA)在水中更倾向于形成球状与多孔球状自组装体;另外,随着pH值的升高,自组装体表现出“呼吸”作用,从小尺寸的球状逐步膨胀为多孔球状自组装体,可稳定负载85 %以上抗菌成分(对羟基苯甲酸乙酯钠)构建抗菌纳米材料,得到对数抗菌值高于4.4的抗菌材料,用于抗菌包装后常温食品存储的时间显著延长。

关键词: 纯亲水无规聚合物, 水相自组装, 抗菌材料, 活性物负载

Abstract:

The self-assembly was induced for a hydrophilic random copolymer of poly(DMAEMA-co-AA) in pure water, and the self-assemblies were fabricated by loading antibacterial active components. The results indicated that when the random copolymer contained 51.6 wt % of AA, poly(DMAEMA-co-AA) tended to form spherical and porous spherical self-assemblies in pure water. With an increase of pH value, the self-assemblies exhibited a “breathing” behavior and varied from small-size spheres to porous spheres. More than 85 % ethyl p-hydroxybenzoate sodium as an antibacterial component could be stably loaded on the self-assemblies to form the antibacterial nanomaterials. Moreover, the other antibacterial components could also be loaded on the self-assemblies. The antibacterial nanomaterials achieved a logarithmic antibacterial value of above 4.4, and they could prolong the storage time of food at room temperature when used for anti-bacterial packaging.

Key words: purely hydrophilic random copolymer, aqueous self?assembly, antibacterial material, active load technique

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