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Influence of Morphology and Rheological Properties on the Mechanical and Dielectric Behavior of Block Copolymer Gels
Author(s) -
de Sousa Rogério Ramos,
Carastan Danilo Justino
Publication year - 2019
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.201800056
Subject(s) - materials science , copolymer , rheology , dielectric , composite material , dielectric elastomers , elastomer , viscosity , polymer , modulus , elastic modulus , morphology (biology) , optoelectronics , biology , genetics
Dielectric elastomers are materials of increasing interest in applications as electroactive polymers. In this field, materials with high dielectric constant and low elastic modulus are essential for high actuation performance, and block copolymer gels are among the best candidates for these applications. In this study SEBS block copolymer gels containing mineral oil were obtained in order to evaluate their morphological structure and rheological properties, as well as the impact of these properties on their mechanical and dielectric behavior. The variation of the dielectric constant was verified as a function of the viscosity of the SEBS gel and its morphological structure.