Intermediate liquid crystalline phases in the binary system C16TACl-H2O: an NMR and low-angle x-ray diffraction study

Direct detection of nitrogen-14 in solid-state NMR spectroscopy

“…The above publications spurred an increase in the use of 14 N NMR as a probe of LCs, lipid bilayers and related systems, with a number of reports studying 14 N linewidths and relaxation [180][181][182][183][184][185][186][187][188][189][190][191], and others investigating quadrupolar splittings [192][193][194][195][196][197][198][199][200][201][202][203][204][205][206][207][208][209][210].…”

Nuclear Magnetic Resonance and X-Ray Study of a Rectangular Phase

“…Addition of SdS should then lar, the molecular segregation in two-component ribbons allows the system to adjust the local surface charge density decrease the electrostatic free energy between adjacent ribto minimize its free energy. For R a phases in two-component bons and compensate for the increasing electrostatic repulsystems (4,5,17,18,20,21) this is not possible since the sion between SdS headgroups in a ribbon. Since the R a ribbons consist of one component only.…”

Synthesis of mesoporous silica materials (MCM‐41) using silica fume as the silica source in a binary surfactant system assisted by post‐hydrothermal treatment and its Pb2+ removal properties

“…The synthetic route used to prepare MCM‐41 is shown in Figure . As is known, in the description of the liquid crystal template mechanism, the local effective surfactant‐packing parameter ( g ) is most important for the pore structure of the mesoporous material, which can influence the shape and size of the pores formed. The g value is generally expressed as follows: where V is the total volume of the surfactant chains plus any co‐solvent organic molecules between the chains, a 0 is the effective head group area at the micelle surface and l is the kinetic surfactant tail length or curvature elastic energy.…”