• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Applied Polymer Science >Synthesis and Characterization of Polystyrene Coated Iron Oxide Nanoparticles and Asymmetric Assemblies by Phase Inversion
【24h】

Synthesis and Characterization of Polystyrene Coated Iron Oxide Nanoparticles and Asymmetric Assemblies by Phase Inversion

机译：相转化法合成聚苯乙烯包覆氧化铁纳米粒子和不对称组件的表征

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Films with a gradient concentration of magnetic iron oxide nanoparticles are reported, based on a phase inversion membrane process. Nanoparticles with approximate to 13 nm diameter were prepared by coprecipitation in aqueous solution and stabilized by oleic acid. They were further functionalized by ATRP leading to grafted polystyrene brush. The final nanoparticles of 33 nm diameter were characterized by TGA, FTIR spectroscopy, GPC, transmission electron microscopy, and dynanmic light scattering. Asymmetric porous nanoparticle assemblies were then prepared by solution casting and immersion in water. The nanocomposite film production with functionalized nanoparticles is fast and technically scalable. The morphologies of films were characterized by scanning electron microscopy and atomic force microscopy, demonstrating the presence of sponge-like structures and finger-like cavities when 50 and 13 wt % casting solutions were, respectively, used. The magnetic properties were evaluated using vibrating sample magnetometer. (c) 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41368.
机译：基于相转化膜方法，报道了具有梯度浓度的磁性氧化铁纳米颗粒的薄膜。通过在水溶液中共沉淀制备直径约13 nm的纳米颗粒，并用油酸使其稳定。它们通过ATRP进一步功能化，形成了接枝聚苯乙烯刷。通过TGA，FTIR光谱，GPC，透射电子显微镜和动态光散射对最终直径为33 nm的纳米颗粒进行了表征。然后通过溶液流延并浸入水中制备不对称的多孔纳米颗粒组件。具有官能化的纳米颗粒的纳米复合膜的生产是快速的并且在技术上可扩展。膜的形貌通过扫描电子显微镜和原子力显微镜表征，表明当分别使用50和13重量％的流延溶液时存在海绵状结构和手指状腔。使用振动样品磁力计评估磁性。 （c）2014 Wiley Periodicals，Inc. J. Appl。 Polym。科学2015，132，41368。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号