Anisotropic Swelling Behavior of Liquid Crystal Elastomers in Isotropic Solvents DOI Creative Commons
Li Mei Zhang, Hong Li,

Wenjiang Zheng

et al.

Nanomaterials, Journal Year: 2025, Volume and Issue: 15(6), P. 443 - 443

Published: March 14, 2025

The chemical response of liquid crystal elastomers (LCEs) offers substantial potential for applications in propulsion systems, micromechanical and active smart surfaces. However, the shape-changing behaviors LCEs to organic (isotropic) solvents remain scarcely explored, with most research focusing on (anisotropic) solvents. Herein, we prepared a series aligned varying crosslink densities using surface alignment technique combined an aza-Michael addition reaction, aiming investigate their swelling different isotropic We found that rates shape volume variation modes, elastic modulus LCEs, polarity solvent all significantly influence behavior. Specifically, when swell acetone, dimethylformamide (DMF), ethyl acetate, contraction occurs along direction. Conversely, extension direction is observed toluene, anisole, acrylic acid. Meanwhile, perpendicular noted nearly These changes can be attributed phase transitions LCEs. This not only provides valuable insights into mechanisms but also holds great promise development sensors gas sensing applications.

Language: Английский

Anisotropic Swelling Behavior of Liquid Crystal Elastomers in Isotropic Solvents DOI Creative Commons
Li Mei Zhang, Hong Li,

Wenjiang Zheng

et al.

Nanomaterials, Journal Year: 2025, Volume and Issue: 15(6), P. 443 - 443

Published: March 14, 2025

The chemical response of liquid crystal elastomers (LCEs) offers substantial potential for applications in propulsion systems, micromechanical and active smart surfaces. However, the shape-changing behaviors LCEs to organic (isotropic) solvents remain scarcely explored, with most research focusing on (anisotropic) solvents. Herein, we prepared a series aligned varying crosslink densities using surface alignment technique combined an aza-Michael addition reaction, aiming investigate their swelling different isotropic We found that rates shape volume variation modes, elastic modulus LCEs, polarity solvent all significantly influence behavior. Specifically, when swell acetone, dimethylformamide (DMF), ethyl acetate, contraction occurs along direction. Conversely, extension direction is observed toluene, anisole, acrylic acid. Meanwhile, perpendicular noted nearly These changes can be attributed phase transitions LCEs. This not only provides valuable insights into mechanisms but also holds great promise development sensors gas sensing applications.

Language: Английский

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