Tunable electrorheological performance of silicone oil suspensions based on controllably reduced graphene oxide by surface initiated atom transfer radical polymerization of poly(glycidyl methacrylate)

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F18%3A63518922" target="_blank" >RIV/70883521:28110/18:63518922 - isvavai.cz</a>

Alternative codes found

RIV/70883521:28610/18:63518922

Result on the web

<a href="http://dx.doi.org/10.1016/j.jiec.2017.08.013" target="_blank" >http://dx.doi.org/10.1016/j.jiec.2017.08.013</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jiec.2017.08.013" target="_blank" >10.1016/j.jiec.2017.08.013</a>

Result language

angličtina

Original language name

Tunable electrorheological performance of silicone oil suspensions based on controllably reduced graphene oxide by surface initiated atom transfer radical polymerization of poly(glycidyl methacrylate)

Original language description

This article is focused on the controllable reduction of the graphene oxide (GO) particles as a simultaneous process during surface initiated atom transfer radical polymerization (SI-ATRP) providing hybrid particles with tailored conductivity and substantial polymer shell on the particles tunable by SI-ATRP conditions. The main advantage of such approach is that both the compatibility improvement, due to the polymer layer, and conductivity tuning, due to partial GO reduction, were simply achieved in single-step reaction providing electrorheological (ER) system with enhanced performance in comparison to either neat GO or similar non-covalently bonded GO-polymer hybrids. The presence of the poly(glycidyl methacrylate) (PGMA) on the surface of GO was investigated using FTIR spectrometry, transmission electron microscopy and thermogravimetric analysis and their chain length (Mw) and polydispersity index (PDI) were determined by 1H NMR and GPC, respectively. Two different GO-PGMA particle systems varied in Mw and PDI and also in electrical conductivities were prepared and their electro-responsive capabilities were investigated. The reduction of GO particles was confirmed by Raman shift as well as conductivity measurements. Electrorheological (ER) performance was investigated at various electric field strengths and repeatability of the phenomenon was confirmed by 10 on/off field cycles. Finally, with the help of dielectric measurements of GO-PGMA based ER suspensions, fitted by Havriliak–Negami model, the relaxation processes were properly investigated and the results were correlated with those obtained from electrorheological measurements.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10404 - Polymer science

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Industrial Engineering Chemistry

ISSN

1226-086X

e-ISSN

—

Volume of the periodical

57

Issue of the periodical within the volume

Neuveden

Country of publishing house

KR - KOREA, REPUBLIC OF

Number of pages

9

Pages from-to

104-112

UT code for WoS article

000422811600013

EID of the result in the Scopus database

2-s2.0-85028367784