Abstract
In this paper, the novel material with controllable wettability switching triggered by external electric field is developed. The material is based on the piezopolymer blend of poly(methyl methacrylate) (PMMA) and polyvinylidene difluoride (PVDF), grafted with various hydrophobic and hydrophilic molecules to alter the initial wettability of polymer films. Organic functional groups are grafted on the blend surface via formation of covalent bonds between PMMA and arenediazonium tosylates. The surface chemical structure and morphology of prepared samples are studied by X-ray photoelectron spectroscopy, UV–vis, and attenuated total reflection infra red (ATR-IR) spectroscopies, atomic force microscopy (AFM), and confocal microscopy. Attachment of gold nanoparticles to grafted thiol chemical groups is additionally used to confirm the modification procedure. Application of external stimuli in the form of the electric field leads to dramatic changes in water contact angle. Wettability switching is found to be extremely fast and completely repeatable without the destructions of the polymer film. Mechanism of switching is attributed to the morphological smoothening of piezoelectric responsible composite PVDF–PMMA under the application of external stimuli.
| Original language | English |
|---|---|
| Article number | 1600886 |
| Journal | Advanced Materials Interfaces |
| Volume | 4 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 9 Mar 2017 |
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Keywords
- piezoresponse
- PVDF/PMMA blend
- surface modification
- wettability switching
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering
Cite this
Fast and Reproducible Wettability Switching on Functionalized PVDF/PMMA Surface Controlled by External Electric Field. / Guselnikova, Olga; Svanda, Jan; Postnikov, Pavel; Kalachyova, Yevgeniya; Svorcik, Vaclav; Lyutakov, Oleksiy.
In: Advanced Materials Interfaces, Vol. 4, No. 5, 1600886, 09.03.2017.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Fast and Reproducible Wettability Switching on Functionalized PVDF/PMMA Surface Controlled by External Electric Field
AU - Guselnikova, Olga
AU - Svanda, Jan
AU - Postnikov, Pavel
AU - Kalachyova, Yevgeniya
AU - Svorcik, Vaclav
AU - Lyutakov, Oleksiy
PY - 2017/3/9
Y1 - 2017/3/9
N2 - In this paper, the novel material with controllable wettability switching triggered by external electric field is developed. The material is based on the piezopolymer blend of poly(methyl methacrylate) (PMMA) and polyvinylidene difluoride (PVDF), grafted with various hydrophobic and hydrophilic molecules to alter the initial wettability of polymer films. Organic functional groups are grafted on the blend surface via formation of covalent bonds between PMMA and arenediazonium tosylates. The surface chemical structure and morphology of prepared samples are studied by X-ray photoelectron spectroscopy, UV–vis, and attenuated total reflection infra red (ATR-IR) spectroscopies, atomic force microscopy (AFM), and confocal microscopy. Attachment of gold nanoparticles to grafted thiol chemical groups is additionally used to confirm the modification procedure. Application of external stimuli in the form of the electric field leads to dramatic changes in water contact angle. Wettability switching is found to be extremely fast and completely repeatable without the destructions of the polymer film. Mechanism of switching is attributed to the morphological smoothening of piezoelectric responsible composite PVDF–PMMA under the application of external stimuli.
AB - In this paper, the novel material with controllable wettability switching triggered by external electric field is developed. The material is based on the piezopolymer blend of poly(methyl methacrylate) (PMMA) and polyvinylidene difluoride (PVDF), grafted with various hydrophobic and hydrophilic molecules to alter the initial wettability of polymer films. Organic functional groups are grafted on the blend surface via formation of covalent bonds between PMMA and arenediazonium tosylates. The surface chemical structure and morphology of prepared samples are studied by X-ray photoelectron spectroscopy, UV–vis, and attenuated total reflection infra red (ATR-IR) spectroscopies, atomic force microscopy (AFM), and confocal microscopy. Attachment of gold nanoparticles to grafted thiol chemical groups is additionally used to confirm the modification procedure. Application of external stimuli in the form of the electric field leads to dramatic changes in water contact angle. Wettability switching is found to be extremely fast and completely repeatable without the destructions of the polymer film. Mechanism of switching is attributed to the morphological smoothening of piezoelectric responsible composite PVDF–PMMA under the application of external stimuli.
KW - piezoresponse
KW - PVDF/PMMA blend
KW - surface modification
KW - wettability switching
UR - http://www.scopus.com/inward/record.url?scp=85014826425&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85014826425&partnerID=8YFLogxK
U2 - 10.1002/admi.201600886
DO - 10.1002/admi.201600886
M3 - Article
VL - 4
JO - Advanced Materials Interfaces
JF - Advanced Materials Interfaces
SN - 2196-7350
IS - 5
M1 - 1600886
ER -