文献类型：期刊文献

英文题名：Template-free synthesis of hollow poly(o-anisidine) microspheres and their electrorheological characteristics

作者：Cheng, Qilin[1,2]; Pavlinek, Vladimir[2]; He, Ying[1,2]; Yan, Yanfang[1]; Li, Chunzhong[1]; Saha, Petr[2]

机构：[1] Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, 200237 Shanghai, China; [2] Centre of Polymer Systems, Polymer Centre, Tomas Bata University in Zlin, nam. T G Masaryka 5555, 760 01 Zlin, Czech Republic

年份：2011

卷号：20

期号：6

外文期刊名：Smart Materials and Structures

收录：EI(收录号：20123115292603)

语种：英文

外文关键词：Particles (particulate matter) - Rheology - Electric fields - Nanofluidics - Electrorheological fluids

摘要：Hollow poly(o-anisidine) (POA) microspheres were synthesized by chemical oxidation polymerization using a template-free method. The structure and morphology were characterized by SEM, TEM and FT-IR. The results indicate that the diameter of the hollow spheres is around 1m and hollow POA shows a similar chemical structure to the granular form. The rheological properties of suspensions of hollow POA microspheres and granular POA particles were investigated under both steady and oscillatory shear with the application of electric fields. It was found that a suspension of hollow POA microspheres showed typical electrorheological (ER) behavior under an applied electric field, but exhibited lower ER activity than a granular POA suspension despite its higher stability. The lower ER performance of the POA suspension could be attributed to its weaker interfacial polarization as revealed by dielectric analysis. ? 2012 IOP Publishing Ltd.