Study on the structure and rheological behavior of hexagonal lyotropic liquid crystal template
Hexagonal lyotropic liquid crystals(HLLC)are ideal soft templates for the preparation of nanomate-rials with precise size and structure at the nanoscale/sub-nanoscale level.This article reports the influence of surfactant molecule,dodecyltrimethylammonium bromide(DTAB),on the structure and physicochemical prop-erties of the ternary HLLC system formed by it.The phase structure,structural parameters,and rheological properties of the HLLC were characterized by polarized light microscope,small angle X-ray scattering technolo-gy,and rheometers.The results showed that with the increase of DTAB molecular concentration,the micelle spacing,channel width and domain size decreased,but the micelle radius increased.At the same time,with the concentration of DTAB molecules increased,the dynamic mechanical properties of the HLLC system became more excellent.This study can better understand the rules of the influence of amphiphilic molecules on the structure and physicochemical properties of HLLC template,thus providing a theoretical reference for fine-tun-ing the nanostructure parameters and achieving nanostructure retention through the composition design at the molecular level.
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