TY  - JOUR
A1  - Stoyanov, Hristiyan
A1  - Kollosche, Matthias
A1  - Risse, Sebastian
A1  - Wache, Remi
A1  - Kofod, Guggi
T1  - Soft conductive elastomer materials for stretchable electronics and voltage controlled artificial muscles
JF  - Advanced materials
N2  - Block copolymer elastomer conductors (BEC) are mixtures of block copolymers grafted with conducting polymers, which are found to support very large strains, while retaining a high level of conductivity. These novel materials may find use in stretchable electronics. The use of BEC is demonstrated in a capacitive strain sensor and in an artificial muscle of the dielectric elastomer actuator type, supporting more than 100% actuation strain and capacity strain sensitivity up to 300%.
KW  - soft electrical connections
KW  - stretchable electronics
KW  - elastic conductor
KW  - compliant electrodes
Y1  - 2013
U6  - https://doi.org/10.1002/adma.201202728
SN  - 0935-9648
VL  - 25
IS  - 4
SP  - 578
EP  - 583
PB  - Wiley-VCH
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Wache, Remi
A1  - McCarthy, Denis N.
A1  - Risse, Sebastian
A1  - Kofod, Guggi
T1  - Rotary Motion Achieved by New Torsional Dielectric Elastomer Actuators Design
JF  - IEEE ASME transactions on mechatronics
N2  - This paper reports a new way to produce a rotation motion actuated by dielectric elastomer actuators. Two specific electrode designs have been developed and the rotation of the actuator centers has been demonstrated and measured. At low strains, the rotation shows a nearly quadratic dependence with the voltage. This behavior was used to compare the performances between the two proposed designs. Among the tested configurations, a maximal rotation of 10 degrees was achieved.
KW  - Dielectric elastomer actuator (DEA)
KW  - electroactive polymer
KW  - rotation
Y1  - 2015
U6  - https://doi.org/10.1109/TMECH.2014.2301633
SN  - 1083-4435
SN  - 1941-014X
VL  - 20
IS  - 2
SP  - 975
EP  - 977
PB  - Inst. of Electr. and Electronics Engineers
CY  - Piscataway
ER  - 
TY  - JOUR
A1  - Kussmaul, Bjoern
A1  - Risse, Sebastian
A1  - Kofod, Guggi
A1  - Wache, Remi
A1  - Wegener, Michael
A1  - McCarthy, Denis N.
A1  - Krüger, Hartmut
A1  - Gerhard, Reimund
T1  - Enhancement of dielectric permittivity and electromechanical response in silicone elastomers molecular grafting of organic dipoles to the macromolecular Network
JF  - Advanced functional materials
N2  - A novel method is established for permittivity enhancement of a silicone matrix for dielectric elastomer actuators (DEAs) by molecular level modifications of the elastomer matrix. A push-pull dipole is synthesized to be compatible with the silicone crosslinking chemistry, allowing for direct grafting to the crosslinker molecules in a one-step film formation process. This method prevents agglomeration and yields elastomer films that are homogeneous down to the molecular level. The dipole-to-silicone network grafting reaction is studied by FTIR. The chemical, thermal, mechanical and electrical properties of films with dipole contents ranging from 0 wt% to 13.4 wt% were thoroughly characterized. The grafting of dipoles modifies the relative permittivity and the stiffness, resulting in the actuation strain at a given electrical field being improved by a factor of six.
KW  - dipole grafting
KW  - silicone based dielectric elastomer actuators
KW  - permittivity enhancement
Y1  - 2011
U6  - https://doi.org/10.1002/adfm.201100884
SN  - 1616-301X
VL  - 21
IS  - 23
SP  - 4589
EP  - 4594
PB  - Wiley-VCH
CY  - Weinheim
ER  -