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Morphology control in polymerised high internal phase emulsion templated via macro-RAFT agent composition: visualizing surface chemistry†
Polymer Chemistry ( IF 4.1 ) Pub Date : 2017-11-30 00:00:00 , DOI: 10.1039/c7py01770g
A. Khodabandeh 1, 2, 3, 4, 5 , R. D. Arrua 4, 5, 6, 7 , B. R. Coad 4, 5, 6, 7, 8 , T. Rodemann 2, 4, 9, 10 , T. Ohigashi 11, 12, 13, 14 , N. Kosugi 11, 12, 13, 14 , S. C. Thickett 2, 4, 10, 15 , E. F. Hilder 4, 5, 6, 7
Affiliation  

A series of polymerized high internal phase emulsion (polyHIPE) materials have been prepared by using a water in oil emulsion stabilized by a macro-RAFT agent, 2-(butylthiocarbonothioylthio)-2-poly(styrene)-b-poly(acrylic acid), acting as a polymeric surfactant. The pore structures of the formed polyHIPEs were closed. By removing the RAFT-endgroup of the amphiphilic macro-RAFT agent, the obtained polyHIPEs possessed an open structure with voids. The effect of the RAFT-endgroup of the amphiphilic macro-RAFT agent on the surface chemistry of the polyHIPEs is discussed. The obtained polyHIPEs via this surfactant-assisted functionalization strategies were characterized by FTIR spectroscopy, FTIR mapping, SEM, SEM-EDX, TEM, XPS as well as synchrotron-based scanning transmission X-ray microscopy (STXM). The latter technique revealed the surface chemistry of the obtained polyHIPEs and macro-RAFT agent multicomponents with a surface spatial resolution of the order of 30–100 nm.

中文翻译:

通过Macro-RAFT剂组成 模板化的聚合高内相乳液的形貌控制:可视化表面化学

通过使用由宏观RAFT剂2-(丁基硫代羰基硫代硫基硫基)-2-聚(苯乙烯)-b-聚(丙烯酸)稳定的油包水乳液制备了一系列聚合的高内相乳液(polyHIPE)材料,起聚合物表面活性剂的作用。所形成的polyHIPE的孔结构是封闭的。通过除去两亲性宏观RAFT剂的RAFT端基,获得的聚HIPE具有具有空隙的开放结构。讨论了两亲性大分子RAFT剂的RAFT端基对polyHIPEs表面化学的影响。将所得到的polyHIPEs经由该表面活性剂辅助的功能化策略通过FTIR光谱,FTIR映射,SEM,SEM-EDX,TEM,XPS以及基于同步加速器的扫描透射X射线显微镜(STXM)进行了表征。后一种技术揭示了所获得的polyHIPEs和macro-RAFT试剂多组分的表面化学性质,其表面空间分辨率约为30–100 nm。
更新日期:2017-11-30
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