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首页> 外文会议>Materials Research Society Symposium >Polystyrene-Tin and Polystyrene-Tin Oxide Core-Shell Nanostructures for the Assembly and Integration of Colloidal Particles
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Polystyrene-Tin and Polystyrene-Tin Oxide Core-Shell Nanostructures for the Assembly and Integration of Colloidal Particles

机译：聚苯乙烯 - 锡和聚苯乙烯 - 氧化锡核心壳纳米结构，用于组装和整合胶体颗粒

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Polystyrene-tin and polystyrene-tin oxide core-shell structures have been fabricated by a seeded chemical reduction method. Polystyrene seeds were firstly synthesized by an emulsion polymerization process, and these micro- and submicron-sized particles were then treated with a thiol coupling agent. The reduction of tin ions (Sn~(2+)) was realized by a reducing agent of sodium borohydride in the presence of sodium dodecyl sulfate (SDS) surfactant. Shell formation was evident by particle growth, and also was confirmed by element analysis through energy dispersive X-ray spectroscopy (EDS). Field emission scanning electron microscopy (FESEM) showed that a thick and uniform coating was formed on the polystyrene colloidal particles. Either tin or tin oxide was coated on the polystyrene particle surfaces depending on the atmospheric environment (nitrogen vs. air). After heating the polystyrene-tin core-shell nanostructures at a temperature of 150 °C in the air, polystyrene particles were assembled and bonded by the tin solder layers, providing a simple and efficient way to form permanently-bonded integrated structures.
机译：通过种子化学还原方法制造聚苯乙烯 - 锡和聚苯乙烯 - 氧化锡芯壳结构。首先通过乳液聚合方法合成聚苯乙烯种子，然后用硫醇偶联剂处理这些微型和亚微米尺寸的颗粒。通过在十二烷基硫酸钠（SDS）表面​​活性剂存在下，通过硼氢化钠的还原剂来实现锡离子（Sn〜（2+））。通过颗粒生长是显而易见的，通过通过能量分散X射线光谱（EDS）通过元素分析证实了壳形成。场发射扫描电子显微镜（FESEM）显示在聚苯乙烯胶体颗粒上形成厚且均匀的涂层。根据大气环境（氮气与空气）涂覆在聚苯乙烯颗粒表面上的锡或氧化锡。在空气中在150℃的温度下加热聚苯乙烯 - 锡核 - 壳纳米结构后，由锡焊接层组装并粘合聚苯乙烯颗粒，提供一种简单有效的方式来形成永久粘合的综合结构。

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