Preparations of Polystyrene/Aluminum Hydroxide and Polystyrene/Alumina Composite Particles in an Ionic Liquid

Langmuir ◽  
2011 ◽  
Vol 27 (8) ◽  
pp. 4474-4480 ◽  
Author(s):  
Keigo Kinoshita ◽  
Hideto Minami ◽  
Yasunori Tarutani ◽  
Kimitaka Tajima ◽  
Masayoshi Okubo ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Aluminum Hydroxide ◽  
Composite Particles ◽  
Alumina Composite

Preparation of poly(ionic liquid) composite particles and function modification with anion exchange

RSC Advances ◽  
2016 ◽  
Vol 6 (37) ◽  
pp. 31574-31579 ◽  
Author(s):  
Masayoshi Tokuda ◽  
Tatsunori Shindo ◽  
Toyoko Suzuki ◽  
Hideto Minami
Keyword(s):  
Ionic Liquid ◽  
Anion Exchange ◽  
Dispersion Polymerization ◽  
Composite Particles ◽  
Seeded Dispersion Polymerization ◽  
Poly Ionic Liquid ◽  
And Function ◽  
Property Modification

Detailed investigation on the synthesis of poly(ionic liquid) composite particles by seeded (dispersion) polymerization and property modification using anion exchange.

scholarly journals The Effect of Dielectric Polarization Rate Difference of Filler and Matrix on the Electrorheological Responses of Poly(ionic liquid)/Polyaniline Composite Particles

Polymers ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 703 ◽  
Author(s):  
Chen Zheng ◽  
Qi Lei ◽  
Jia Zhao ◽  
Xiaopeng Zhao ◽  
Jianbo Yin
Keyword(s):  
Ionic Liquid ◽  
Electric Fields ◽  
Flow Behavior ◽  
Composite Particles ◽  
Dielectric Polarization ◽  
Rate Difference ◽  
Polarization Rate ◽  
Carrier Liquid ◽  
Poly Ionic Liquid ◽  
Stable Flow

By using different conductivity of polyaniline as filler, a kind of poly(ionic liquid)/polyaniline composite particles was synthesized to investigate the influence of dielectric polarization rate difference between filler and matrix on the electrorheological response and flow stability of composite-based electrorheological fluids under simultaneous effect of shear and electric fields. The composite particles were prepared by a post ion-exchange procedure and then treated by ammonia or hydrazine to obtain different conductivity of polyaniline. Their electrorheological response was measured by dispersing these composite particles in insulating carrier liquid under electric fields. It showed that the composite particles treated by ammonia had the strongest electrorheological response and most stable flow behavior in a broad shear rate region from 0.5 s−1 to 1000 s−1. By using dielectric spectroscopy, it found that the enhanced electrorheological response with stable flow depended on the matching degree of the dielectric polarization rates between poly(ionic liquid) matrix and polyaniline filler. The closer their polarization rates are, the more stable the flow curves are. These results are helpful to design optimal composite-based electrorheological materials with enhanced and stable ER performance.

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