Core-Shell Composite Synthesized through In Situ Polymerization in Emulsion with High Electrical Conductivity Sensitive to Humidity

2017 ◽  
Vol 34 (5) ◽  
pp. 1600423 ◽  
Author(s):  
Lipei Yue ◽  
Weidong Li ◽  
Yingjie Cao ◽  
Yongping Bai
Keyword(s):  
Electrical Conductivity ◽  
In Situ Polymerization ◽  
Core Shell ◽  
High Electrical Conductivity ◽  
Shell Composite

scholarly journals Evidence of the Intercalative Redox Polymerization of Ehylenedioxythiophene intoV2O5; Achievement of Highly Conducting Poly(3,4-Ethylenedioxythiophene)/V2O5Nanohybrids

2004 ◽  
Vol 27 (4) ◽  
pp. 229-236 ◽  
Author(s):  
A. V. Murugan ◽  
C. W. Kwon ◽  
S. J. Hwang ◽  
M. H. Delville ◽  
J. Portier ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
In Situ Polymerization ◽  
High Electrical Conductivity ◽  
Redox Polymerization ◽  
Novel Method

We have established a novel method of inserting poly(3,4-ethylenedioxythiophene) (PEDOT) between the layers ofV2O5using a soft process of intercalation. The reaction takes place with the in situ polymerization of EDOT within the framework of crystallineV2O5with different nominal EDOT/V2O5ratios. The hybrids PEDOT/V2O5exhibit a high electrical conductivity

ELECTRORHEOLOGY OF MONODISPERSE CORE/SHELL STRUCTURED PARTICLE SUSPENSIONS

2005 ◽  
Vol 19 (07n09) ◽  
pp. 1077-1082 ◽  
Author(s):  
H. J. CHOI ◽  
M. S. CHO ◽  
I. S. LEE
Keyword(s):  
Particle Size ◽  
Dispersion Polymerization ◽  
Acidic Solution ◽  
In Situ Polymerization ◽  
Composite Particles ◽  
Core Shell ◽  
Monodisperse Particle ◽  
Polymerization Method ◽  
Shell Composite

As a novel candidate of electrorheological (ER) material, core/shell composite particles (PAPMMA) of poly(methyl methacrylate) (PMMA) core and polyaniline (PANI) shell were prepared and adopted as a dispersed phase. PAPMMA particles, obtained by a dispersion polymerization method, were spherical and possessed a monodisperse particle size distribution, in which the PANI shell was introduced on the surface of PMMA via an in-situ polymerization of aniline by adding an oxidant in an aqueous acidic solution. Yield stress of the PAPMMA suspensions under an applied electric field was observed to be increased with a particle size. In addition, monodisperse acrylic microspheres with aniline moiety on the surface were prepared by a seeded emulsion method, and then composite particles possessing chemically bonded PANI shell (PA-PGMA) were prepared via an in-situ polymerization of aniline. Their ER characteristics were also examined.

Surface functionalization of Ag/polypyrrole-coated cotton fabric by in situ polymerization and magnetron sputtering

2019 ◽  
Vol 89 (23-24) ◽  
pp. 4884-4895 ◽  
Author(s):  
Shan He ◽  
Zhuoming Chen ◽  
Binjie Xin ◽  
Fuli Zhang ◽  
Xiaoying Wang ◽  
...  
Keyword(s):  
Thin Film ◽  
Electrical Conductivity ◽  
Magnetron Sputtering ◽  
In Situ Polymerization ◽  
Electronic Devices ◽  
High Electrical Conductivity ◽  
Dc Magnetron Sputtering ◽  
Textile Fabrics ◽  
Coated Cotton

Flexible electronic devices have attracted considerable attention in recent years, and textile fabrics are usually used as the substrates because of their good moisture absorption performance and high flexibility. However, ordinary textile fabrics are electrically insulating, which limits their strain sensing sensitivity. In this study, cotton fabric endowed with high electrical conductivity was prepared by a two-step process of in situ polymerization and direct current (DC) magnetron sputtering. It was firstly modified with a continuous polypyrrole (PPy) thin film by using the in situ polymerization method and then coated with silver (Ag) thin film by using a DC magnetron sputtering system. The experimental results revealed that the resultant Ag/PPy-coated cotton deposited with a sputtering power of 200 W for 25 min has the highest electrical conductivity and its average sheet resistance is 11.7 Ω/sq. Moreover, the Ag/PPy-coated cotton exhibited the advantages of high hydrophobicity, thermal stability, electromechanical performance and washing fastness. Overall, the effective flexibility and high electrical conductivity of the Ag/PPy-coated cotton have been validated effectively and make it one of the promising candidates for preparing electromagnetic shielding and antistatic and smart wearable textile products, especially flexible electronic devices.

A PW12/Ag functionalized mesoporous silica-coated magnetic Fe3O4 core–shell composite as an efficient and recyclable photocatalyst

2021 ◽  
Author(s):  
Pan-Feng Wu ◽  
Qi Xue ◽  
Tian-Yu Wang ◽  
Shan-Jian Li ◽  
Gao-Peng Li ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Photocatalytic Performance ◽  
Core Shell ◽  
Deposition Method ◽  
Functionalized Mesoporous Silica ◽  
Recyclable Photocatalyst ◽  
Shell Composite ◽  
Magnetic Fe3o4 ◽  
Fe3o4 Core

The PW12 and Ag NP functionalized Fe3O4@SiO2@mSiO2-PW12/Ag photocatalyst was assembled via an in situ photoreduction deposition method, displaying highly efficient photocatalytic performance for photodegradation of MO and photoreduction of Cr2O72−.

scholarly journals In Situ Vapor Polymerization of Poly(3,4-ethylenedioxythiophene) Coated SnO2-Fe2O3 Continuous Electrospun Nanotubes for Rapid Detection of Iodide Ions

Materials ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 2084 ◽  
Author(s):  
Xiuru Xu ◽  
Wei Wang ◽  
Bolun Sun ◽  
Xue Zhang ◽  
Rui Zhao ◽  
...  
Keyword(s):  
In Situ Polymerization ◽  
Fast Response ◽  
Core Shell ◽  
Current Response ◽  
Electrospinning Technique ◽  
Iodide Ions ◽  
Wide Range ◽  
Vapor Phase Polymerization ◽  
Fe2o3 Nanotubes

In this work poly(3,4-ethylenedioxythiophene) (PEDOT) coated SnO2-Fe2O3 continuous nanotubes with a uniform core–shell structure have been demonstrated for rapid sensitive detection of iodide ions. The SnO2-Fe2O3 nanotubes were firstly fabricated via an electrospinning technique and following calcination process. An in situ polymerization approach was then performed to coat a uniform PEDOT shell on the surface of as-prepared SnO2-Fe2O3 nanotubes by vapor phase polymerization, using Fe2O3 on the surface of nanotubes as an oxidant in an acidic condition. The resultant PEDOT@SnO2-Fe2O3 core-shell nanotubes exhibit a fast response time (~4 s) toward iodide ion detection and a linear current response ranging from 10 to 100 μM, with a detection limit of 1.5 μM and sensitivity of 70 μA/mM/cm2. The facile fabrication process and high sensing performance of this study can promote a wide range of potential applications in human health monitoring and biosensing systems.

Research of In Situ Polymerization and Core-Shell Structure Modified Emulsified Asphalt

2011 ◽  
Vol 71-78 ◽  
pp. 928-931
Author(s):  
Jin Liang Wu ◽  
Yong Xing Zhang ◽  
Chun Sun Zhang
Keyword(s):  
Shell Structure ◽  
In Situ Polymerization ◽  
Core Shell ◽  
Asphalt Emulsion ◽  
Sound Effect ◽  
Structure And Property ◽  
Modified Asphalt ◽  
Core Shell Structure ◽  
Emulsified Asphalt

Nowadays, there are dominantly two ways of producing modified emulsified asphalt ,one of which is to emulsify modified asphalt, the other to modify asphalt emulsion. But they have the same defect that modifier cannot be evenly mixed with asphalt emulsion, which has side effect on the performance of modified emulsified asphalt. The emulsified asphalt and modifier have different traits in structure and property. In order to make the modifier disperse in asphalt emulsion evenly to improve the performance of modified emulsified asphalt, a tentative idea is brought forward: we shall utilize in-situ polymerization and core-shell structure to enhance feature of emulsified asphalt. Core-shell structure is a method of synthesizing composite material, which can assist to achieve sound effect of the two kinds of materials. The point to emphasize is, in this paper, the introduction and feasibility of the method, its specialty against current mainly methods, the difficulties encountered in practice as well as its promising prospect and the anticipated target to achieve will all be illustrated.

Sign in / Sign up

Export Citation Format

Share Document