Lyotropic mixture made of potassium laurate/1-undecanol/K2SO4/water presenting high birefringences and large biaxial nematic phase domain: a laser conoscopy …
The lyotropic liquid crystalline quaternary mixture made of potassium laurate (KL),
potassium sulphate, 1-undecanol and water was investigated by experimental optical …
potassium sulphate, 1-undecanol and water was investigated by experimental optical …
Effect of alkyl chain length of alcohols on nematic uniaxial-to-biaxial phase transitions in a potassium laurate/alcohol/K2SO4/water lyotropic mixture
Lyotropic liquid crystalline quaternary mixtures of potassium laurate (KL), potassium
sulphate (K2SO4)/alcohol (n-OH)/water, with the alcohols having different numbers of …
sulphate (K2SO4)/alcohol (n-OH)/water, with the alcohols having different numbers of …
Reentrant isotropic-calamitic nematic phase transition in potassium laurate-decanol- D2O mixtures
WS Braga, NM Kimura, DD Luders… - The European Physical …, 2007 - Springer
The phase diagram is an interesting field of research, particulary in lyotropic liquid crystals
(LLC). In this way, one of the most important phase diagrams of this LLC system was …
(LLC). In this way, one of the most important phase diagrams of this LLC system was …
Refractive index measurements in uniaxial and biaxial lyotropic nematic phases
WS Braga, OR Santos, DD Luders, NM Kimura… - Journal of Molecular …, 2016 - Elsevier
The calamitic (NC) and discotic (ND) uniaxial nematic phases are characterized by an order
parameter which is a second-rank, symmetric, traceless tensor with two different …
parameter which is a second-rank, symmetric, traceless tensor with two different …
Uniaxial-biaxial phase transition in lyotropic nematic solutions: Local biaxiality in the uniaxial phase
Y Hendrikx, J Charvolin, M Rawiso - Physical Review B, 1986 - APS
It has been recently shown that the system potassium laurate–decanol–water presents three
nematic phases, two uniaxial and one biaxial. We are currently investigating the structure of …
nematic phases, two uniaxial and one biaxial. We are currently investigating the structure of …
Biaxial nematic lyomesophase studied by x-ray diffraction
AMF Neto, AM Levelut, L Liébert… - Molecular Crystals and …, 1985 - Taylor & Francis
Biaxial nematic lyomesophases of potassium laurate/I. decanol/D2O have been studied by X-
ray diffraction technique using conventional and synchrotron source radiation. The …
ray diffraction technique using conventional and synchrotron source radiation. The …
An analogy between biaxial crystal and biaxial nematic lyotropic phase
GP Souza, DA Oliveira, DD Luders, NM Kimura… - Journal of Molecular …, 2010 - Elsevier
The biaxial nematic phase (NB), the intermediate phase between the discotic nematic (ND)
and calamitic (NC) nematic phases, is investigated from refractive index data in a potassium …
and calamitic (NC) nematic phases, is investigated from refractive index data in a potassium …
Temperature and concentration range of the biaxial nematic lyomesophase in the mixture potassium laurate/1-decanol/deuterium oxide
AM Figueiredo Neto, L Liebert… - The Journal of Physical …, 1985 - ACS Publications
Introduction Mixtures of amphiphilic molecules and water may give nematic lyomesophases
under proper temperature-concentration condi-tions. 1 From symmetry considerations, 2 two …
under proper temperature-concentration condi-tions. 1 From symmetry considerations, 2 two …
Observation of a biaxial nematic phase in potassium laurate-1-decanol-water mixtures
LJ Yu, A Saupe - Physical Review Letters, 1980 - APS
The phase diagram of the ternary system potassium laurate-1-decanol-D O 2 was studied
over concentration ranges where nematic phases are likely to occur. Two uniaxial nematic …
over concentration ranges where nematic phases are likely to occur. Two uniaxial nematic …
Anomalous behavior in the crossover between the negative and positive biaxial nematic mesophases in a lyotropic liquid crystal
A novel quaternary lyotropic liquid‐crystalline mixture of dodecyltrimethylammonium
bromide (DDTMABr)/sodium bromide/1‐dodecanol/water, presenting the biaxial nematic …
bromide (DDTMABr)/sodium bromide/1‐dodecanol/water, presenting the biaxial nematic …