LIQUID-CRYSTALLINE ELASTOMER PRECURSOR AND LIQUID-CRYSTALLINE ELASTOMER

摘要

Provided is a novel liquid-crystalline elastomer that can undergo phase transition reversibly between a liquid crystal phase and an isotropic phase even in a relatively low temperature range. A liquid-crystalline elastomer precursor containing a mesogenic group to which an oxide compound has been added, wherein the liquid-crystalline elastomer precursor has at least one ester bond and at least two active hydrogen groups in the molecular structure aside from the mesogenic group. A liquid-crystalline elastomer configured such that the liquid-crystalline elastomer precursor has been crosslinked by an at least trifunctional isocyanate compound and/or polyol compound, wherein the liquid-crystalline elastomer has at least one ester bond in the molecular structure aside from the mesogenic group and changes state reversibly between a liquid crystal phase and an isotropic phase in accordance with changes in temperature.