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One-Step Synthesis of Hollow Dimpled Polystyrene Microparticles by Dispersion Polymerization
Langmuir ( IF 3.7 ) Pub Date : 2017-02-17 00:00:00 , DOI: 10.1021/acs.langmuir.6b04428 Sung Hwan Park 1 , Jinwoo Kim 1 , Wang-Eun Lee 2 , Doo-Jin Byun 2 , Mun Ho Kim 1
Langmuir ( IF 3.7 ) Pub Date : 2017-02-17 00:00:00 , DOI: 10.1021/acs.langmuir.6b04428 Sung Hwan Park 1 , Jinwoo Kim 1 , Wang-Eun Lee 2 , Doo-Jin Byun 2 , Mun Ho Kim 1
Affiliation
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The design and preparation of hollow nonspherical microparticles are of great significance for their potential applications, but the development of a facile synthetic method using only one production step remains a great challenge. In the current work, a new template-free method based on dispersion polymerization was successfully developed to produce anisotropic hollow polystyrene (PS) microparticles in a single step. In the synthesis, ammonium persulfate (APS) played a critical role in the formation and growth of highly uniform and stable hollow PS microparticles. By varying the concentration of APS and that of the stabilizer used, polyvinylpyrrolidone, we were able to control the average size of the PS particles and their degree of concavity. Based on our results and observations, a plausible mechanism for formation of these unusually shaped PS microparticles was proposed.
中文翻译：
分散聚合一步合成空心微孔聚苯乙烯微粒
中空非球形微粒的设计和制备对其潜在应用具有重要意义，但是仅使用一个生产步骤开发一种简便的合成方法仍然是一个巨大的挑战。在当前的工作中，成功开发了一种基于分散聚合的无模板新方法，可在一个步骤中生产各向异性中空聚苯乙烯（PS）微粒。在合成过程中，过硫酸铵（APS）在高度均匀和稳定的中空PS微粒的形成和生长中发挥了关键作用。通过改变APS的浓度和所用稳定剂聚乙烯吡咯烷酮的浓度，我们能够控制PS颗粒的平均尺寸及其凹度。根据我们的结果和观察，
更新日期：2017-02-17
中文翻译：
分散聚合一步合成空心微孔聚苯乙烯微粒
中空非球形微粒的设计和制备对其潜在应用具有重要意义，但是仅使用一个生产步骤开发一种简便的合成方法仍然是一个巨大的挑战。在当前的工作中，成功开发了一种基于分散聚合的无模板新方法，可在一个步骤中生产各向异性中空聚苯乙烯（PS）微粒。在合成过程中，过硫酸铵（APS）在高度均匀和稳定的中空PS微粒的形成和生长中发挥了关键作用。通过改变APS的浓度和所用稳定剂聚乙烯吡咯烷酮的浓度，我们能够控制PS颗粒的平均尺寸及其凹度。根据我们的结果和观察，
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