Synthesis of polystyrene/poly(o-anisidine) core/shell structured microparticle and its electrorheological behavior

被引：4

作者：

Seo, Sang Hyeok ^{[1
,2
]}

Kwon, Yong Ku ^{[1
,2
]}

Jin, Hyoung-Joon ^{[1
,2
]}

Lee, Jin-Kyun ^{[1
,2
]}

Choi, Hyoung Jin ^{[1
,2
]}

机构：

[1] Inha Univ, Dept Polymer Sci & Engn, Incheon 402751, South Korea

[2] Inha Univ, Program Environm & Polymer Engn, Incheon 22212, South Korea

来源：

POLYMER | 2023年 / 281卷

基金：

新加坡国家研究基金会;

关键词：

Electrorheological fluid; Poly( o -anisidine); Core; shell; Conducting polymer; TITANYL OXALATE; ANILINE OLIGOMERS; FLUID; POLYANILINE; MICROSPHERES; PARTICLES; STRESS;

D O I：

10.1016/j.polymer.2023.126090

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

We fabricated core/shell typed semiconducting poly(o-anisidine) (POA) coated polystyrene (PS) composite microspheres and used them as an electrorheological (ER) material. Micro-spherical PS seeds were initially fabricated through a dispersion polymerization method, and the semiconducting POA was coated onto the PS seeds through a chemical oxidation polymerization technique. Uniform coating of the POA onto the PS particles was confirmed via morphology analysis. Their chemical structures and thermal behaviors were identified using Fourier transform infrared spectroscopy and thermogravimetric analysis, respectively. Using a rotational rheometer, PS/POA based ER fluid (5 vol%) exhibited a yield stress of about 72 Pa under an electric field strength of 2.5 kV/mm. Over the range of electric field strength, both dynamic and elastic yield stresses grew in proportion to the power of 1.5 of the electric field strength. Dielectric properties of the ER suspension were also found to be correlated with its ER properties.

引用

页数：10

共 65 条

[1] Non-isothermal decomposition kinetics of conductive polyaniline and its derivatives [J].