We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Light-Induced Actuation of Poly(dimethylsiloxane) Filled with Graphene Oxide Grafted with Poly(2-(trimethylsilyloxy)ethyl Methacrylate).
- Authors
Osicka, Josef; Mrlik, Miroslav; Ilčíková, Markéta; Munster, Lukas; Bazant, Pavel; Špitalský, Zdenko; Mosnáček, Jaroslav
- Abstract
This study serves to combine two approaches into one single step, to achieve a significant improvement of the light-induced actuation capabilities. Graphene oxide (GO) is an inert material, from the electrical and thermal conductivity point of view, and is incompatible with the usually-used poly(dimethylsiloxane) (PDMS) matrix. During surface-modification by surface-initiated atom transfer radical polymerization, the GO was transformed into a conducting and compatible material with the PDMS showing enormous light-induced actuation capability. The GO surface-modification with poly(2-(trimethylsilyloxy)ethyl methacrylate) (PHEMATMS) chains was confirmed by transmission electron microscopy and thermogravimetric analysis, with an on-line monitoring of gasses using FTIR. The improved compatibility was elucidated using contact angle and dielectric properties measurements. The PHEMATMS shell was investigated using gel permeation chromatography and nuclear magnetic resonance. The improved electric conductivity was measured using the four-point probe method and by Raman spectroscopy. The very important mechanical properties were elucidated using dynamic mechanical analysis, and with the help of thermo-mechanic analysis for the light-induced actuation. The excellent actuation capabilities observed, with changes in the length of around 0.8% at 10% pre-strain, are very promising from the point of view of applications.
- Subjects
GRAPHENE oxide; ELECTRIC conductivity; THERMAL conductivity; POLYMERIZATION; TRANSMISSION electron microscopy; THERMOGRAVIMETRY; ATOM transfer reactions
- Publication
Polymers (20734360), 2018, Vol 10, Issue 10, p1059
- ISSN
2073-4360
- Publication type
Article
- DOI
10.3390/polym10101059