首页|Durably and intrinsically antibacterial polyamide 6(PA6)via backbone end-capping with high temperature-resistant imidazolium

Durably and intrinsically antibacterial polyamide 6(PA6)via backbone end-capping with high temperature-resistant imidazolium

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
The antibacterial polyamide 6(PA6)material has attracted great research interest due to its wide ap-plication in food packaging,biomedical fields,functional textiles,and other fields.However,it is still a challenge to prepare intrinsically antibacterial PA6 with highly efficient and durably antibacterial activity via polymerization.Herein,the antibacterial imidazolium ionic liquid of 3-carboxymethyl-1-decyl imida-zole chloride was designed and synthesized for adapting the polymerization and processing temperature of PA6.Then antibacterial PA6(PA6-IL)was synthesized through hydrolyzed ring-opening copolymeriza-tion with imidazolium at the end of the backbones.Compared to physical blending or post-modification methods,antibacterial agents as end-capping reagents of polymer backbones endowed PA6 with intrin-sic antibacterial activity.As expected,the obtained PA6-IL exhibited not just comparable physicochemical and mechanical properties to conventional PA6 but excellent antibacterial activity of low antibacterial time to 60 min and durability for 28 days.Additionally,the corresponding electrospun PA6-IL nanofi-brous membranes showed homogenous morphology and remarkable hydrophilicity of 7.7° as well as the high-efficient antibacterial activity.Melt-spun PA6-IL microfibers revealed a smooth surface as well as enhanced tensile strength and increased breaking elongation compared to those of conventional PA6.The PA6-IL microfibers also behaved with excellent antibacterial efficiency and durability.Accordingly,this work provides a feasible and straightforward strategy to prepare durably and intrinsically antibacterial PA6 materials especially PA6 fibers,which can be widely applied in the textiles field.

Antibacterial PA6High temperature-resistant imidazoliumHigh-efficiently antibacterialDurabilityFibers

Wenwen Wang、Liting Yi、Congang Fu、Xiaoguang Li、Ting Bai、Zhong Yan、Zhentan Lu、Dong Wang

展开 >

Key Laboratory of Textile Fiber and Products(Wuhan Textile University),Ministry of Education,Hubei International Scientific and Technological Cooperation Base of Intelligent Textile Materials & Application,Wuhan Textile University,Wuhan 430200,China

Hangzhou Juheshun New Materials Co.,Ltd,China

国家自然科学基金Science and Technology Research Project of the Educational Commission of Hubei ProvinceWuhan Engineering Technology Research Center for Advanced Fibers

52273060D20221703

2024

10.1016/j.jmst.2023.08.028

材料科学技术(英文版)
中国金属学会 中国材料研究学会 中国科学院金属研究所

材料科学技术(英文版)

CSTPCD
影响因子：0.657
ISSN：1005-0302
年,卷(期)：2024.180(13)
  • 49