TY - JOUR
T1 - Ionic Liquid Cation Size-Dependent Electromechanical Response of Ionic Liquid/Poly(vinylidene fluoride)-Based Soft Actuators
AU - Correia, D. M.
AU - Barbosa, João C.
AU - Costa, C. M.
AU - Reis, Patrícia M.
AU - Esperança, J. M. S. S.
AU - Bermudez, V. De Zea
AU - Lanceros-Méndez, S.
N1 - info:eu-repo/grantAgreement/FCT/5876/147414/PT#
info:eu-repo/grantAgreement/FCT/5876/147333/PT#
UID/QUI/50006/2019, and UID/QUI/0686/2016.
The authors thank FEDER funds through the COMPETE 2020 Programme and National Funds through FCT under the projects PTDC/CTM-ENE/5387/2014, PTDC/FIS-MAC/28157/2017, grants SFRH/BPD/121526/2016 (D.M.C.), SFRH/BD/140842/2018 (J.C.B.), and SFRH/BPD/112547/2015 (C.M.C.), and FCT investigator contracts IF/0621/2015 (P.M.R.) and IF/00355/2012 (J.M.S.S.E.). Financial support from the Spanish Ministry of Economy and Competitiveness (MINECO) through the project MAT2016-76039-C4-3-R (AEI/FEDER, UE) (including the FEDER financial support) and from the Basque Government Industry and Education Departments under the ELKARTEK, HAZITEK and PIBA (PIBA-2018-06) programs is also acknowledged.
PY - 2019/5/23
Y1 - 2019/5/23
N2 -
This work reports on the development of ionic liquid (IL)/poly(vinylidene fluoride) (PVDF) actuator composites. ILs sharing the same anion (bis(trifluoromethylsulfonyl)imide, [TFSI]
-
), and different cations belonging to the families of pyridinium, imidazolium, and ammonium ions, comprising an alkyl side chains with variable length, were used. The physical-chemical properties, thermal behavior, mechanical, electrical, and bending responses of the PVDF/IL composites were evaluated. The incorporation of ILs into the PVDF matrix leads to an increase of the electroactive β phase content. Moreover, the β phase content increases with the increase of the IL alkyl chain length. The degree of crystallinity depends on the IL chain length as well as on the mechanical properties, revealing the plasticizing behavior exerted by the IL. The electrical conductivity decreased with the increase of the cation alkyl chain size. The highest bending response was observed for the [Pmim][TFSI]/PVDF and [Pmpip][TFSI] composites (where Pmim and Pmpip represent propylimidazolium and propylmethylpiperidinium), being 5.7 and 6.0 mm, respectively, at 5 V and 100 mHz.
AB -
This work reports on the development of ionic liquid (IL)/poly(vinylidene fluoride) (PVDF) actuator composites. ILs sharing the same anion (bis(trifluoromethylsulfonyl)imide, [TFSI]
-
), and different cations belonging to the families of pyridinium, imidazolium, and ammonium ions, comprising an alkyl side chains with variable length, were used. The physical-chemical properties, thermal behavior, mechanical, electrical, and bending responses of the PVDF/IL composites were evaluated. The incorporation of ILs into the PVDF matrix leads to an increase of the electroactive β phase content. Moreover, the β phase content increases with the increase of the IL alkyl chain length. The degree of crystallinity depends on the IL chain length as well as on the mechanical properties, revealing the plasticizing behavior exerted by the IL. The electrical conductivity decreased with the increase of the cation alkyl chain size. The highest bending response was observed for the [Pmim][TFSI]/PVDF and [Pmpip][TFSI] composites (where Pmim and Pmpip represent propylimidazolium and propylmethylpiperidinium), being 5.7 and 6.0 mm, respectively, at 5 V and 100 mHz.
UR - http://www.scopus.com/inward/record.url?scp=85064868601&partnerID=8YFLogxK
U2 - 10.1021/acs.jpcc.9b00868
DO - 10.1021/acs.jpcc.9b00868
M3 - Article
AN - SCOPUS:85064868601
SN - 1932-7447
VL - 123
SP - 12744
EP - 12752
JO - Journal of Physical Chemistry C
JF - Journal of Physical Chemistry C
IS - 20
ER -