Synthesis and Characterization of Liquid Crystal Elastomer

Rita A. Gharde¹, Santosh A. Mani^1,2, Suman Lal^3,4, Samriti Khosla³, S. K. Tripathi⁴

¹Department of Physics, University of Mumbai, Mumbai, India.
²K. J. Somaiya College of Engineering, Vidyavihar (E), Mumbai, India.
³Department of Physics, J.C.D.A.V College, Dasuya, Punjab, India.
⁴Department of Advanced Study, Panjabi University, Chandigarh, India.

DOI: 10.4236/msa.2015.66056                

Abstract

The thermal and mechanical properties of Liquid Crystal Elastomers (LCEs) were characterized using various techniques for understanding of their physical behavior. The material used for investigation was synthesized by us, using Finklemann procedure, with proper cross linking density in nematic phase. The material is found to have unique coupling between anisotropicorder of liquid crystal component and elasticity of polymer network. The chemical structures were confirmed by Fourier Transform Infrared (FTIR) Spectroscopy and Scanning Electron Microscopy (SEM). Fabry Perot Scattering Studies (FPSS), Thermo gravimetric Analysis (TGA) and Differential Scanning Calorimatory (DSC) were used to study thermal properties. The mechanical properties were studied using force sensor. Our investigation shows that this synthesized Liquid Crystal Elastomer has ability of spontaneous change as a function of temperature and mechanical force, which shows it as a unique class of soft material.

Keywords

Liquid Crystal Elastomers (LCEs), Fourier Transform Infrared (FTIR) Spectroscopy, Scanning Electron Microscopy (SEM), Fabry Perot Scattering Studies (FPSS), Thermo gravimetric Analysis (TGA), Differential Scanning Calorimetry (DSC)

Conflicts of Interest

The authors declare no conflicts of interest.

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