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Year 2021, , 152 - 155, 29.03.2021

Aykut Evren Yavuz

https://doi.org/10.17776/csj.794871

Abstract

References

  • [1] de Gennes P. G., Prost J., The Physics of Liquid Crystals, Second ed., Oxford: Oxford Science Publications, (1995).
  • [2] Nastishin Y. A., Liu H., Schneider T., Nazerenko V., Vasyuta R., Shiyanovskii S. V., Lavrentovich O. D., Optical characterization of the nematic lyotropic chromonic liquid crystals: Light absorption, birefrigence, and scalar order parameter, Phys. Rev. E, 72 (2005).
  • [3] Kanwar A., Measurement of order parameter, birefrigence and polarizibility of liquid crystals, J. Opt., 42 (2013) 311-315.
  • [4] Dierking I., Neto A. M. F., Novel trends in lyotropic liquid crystals, Crystals, 10 (2020) 604.
  • [5] Neto A. M. F., Salinas S. R. A., Physics of lyotropic liquid crystals, Oxford: Oxford Science Publications, (2005).
  • [6] Akpinar E., Canioz C., Turkmen M., Reis D., Neto A. M. F., Effect of the surfactant alkyl chain length on the stabilisation of lyotropic nematic phases, Liq. Crys., 45 (2018) 219.
  • [7] Santoro P. A., Sampaio A. R., da Luz H.L.F., Palangana A. J., Temperature dependence of refractive indices near uniaxial–biaxial nematic phase transition, Physics Letters A, 353 (2006) 512-515.
  • [8] Otón E., Otón J. M., Caño-García M., Escolano J. M., Quintana X., Geday M. A., Rapid detection of pathogens using lyotropic liquid crystals, Opt. Express, 27 (2019), 10098-10107.
  • [9] Shiyanovskii S. V., Lavrentovich O. D., Schneider T., Ishikawa T., Smalyukh I. I., Woolverton C. J., Niehaus G. D., Doane K. J., Lyotropic chromonic liquid crystals for biological sensing applications, Mol. Cryst. Liq. Cryst., 434 (2005), 259–270.
  • [10] Luders D.D., Oliveira D.A., Kimura N.M., Simões M, Palangana A.J., Order parameter in the nematic–isotropic phase transition, J. Mol. Liq., 207 (2015) 195–199.
  • [11] Braga W. S., Kimura N. M., Luders D. D., Sampaio A. R., Santoro P. A., Palangana A. J., Reentrant isotropic-calamitic nematic phase transition in potassium laurate-decanol-D2O mixtures, Eur. Phys. J. E, 24 (2007) 247–250.
  • [12] Oliveira D.A., Hioka N., Luders D.D., Kimura N.M., Simões M., Palangana A.J., Absorption coefficient and order parameter in a reentrant isotropic–calamitic nematic phase transition, J. Mol. Liq., 166 (2012) 81-83.
  • [13] Singh A.K., Manohar R., Shukla J.P., Biradar A.M., Refractive indices, order parameter and optical transmittance studies of a nematic liquid crystal mixture, Acta Phys. Pol. A, 110 (2006) 485-493.
  • [14] Kanwar A., Measurement of order parameter, birefrigence and polarizibility of liquid crystals, J. Opt., 42 (2013) 311-315.
  • [15] Kuczyński W., Żywucki B., Małecki J., Determination of orientational order parameter in various liquid-crystalline phases, Mol. Crys. Liq. Crys., 381 (2002) 1-19.
  • [16] Kimura N. M., Santoro P. A., Fernandes P. R. G., Palangana A. J., Reentrant isotropic–discotic nematic lyotropic phase transition: a refractive index study, Liq. Crys., 31 (2004) 347–350.
  • [17] Braga W.S., Santos O.R., Luders D.D., Kimura N.M., Sampaio A.R., Simões M., Palangana A.J., Refractive index measurements in uniaxial and biaxial lyotropic nematic phases, J. Mol. Liq., 213 (2016) 186-190.
  • [18] Akpinar E., Turkmen M., Canioz C., Neto A. M. F.; Role of kosmotrope-chaotrope interactions at micelle surfaces on the stabilization of lyotropic nematic phases, Eur. Phys. J. E, 39 (2016), 1-16.
  • [19] Braga W.S., Santos O.R., Sampaio A.R., Kimura N.M., Simões M., Palangana A.J., An optical conoscopy study of a reentrant discotic nematic-biaxial nematic phase transition, J. Mol. Liq., 170 (2012) 72-75.
  • [20] Santos O.R., Braga W.S., Luders D.D., Kimura N.M., Simões M., Palangana A.J., Study of optical conoscopy in uniaxial and biaxial nematic lyotropic phases, J. Mol. Liq., 197 (2014) 120-123.

Determination of order parameter and birefringence depending on temperature of nematic calamitic mesophase formed by TTAB + water binary system using polarized microscopy

Year 2021, , 152 - 155, 29.03.2021

Aykut Evren Yavuz

https://doi.org/10.17776/csj.794871

Abstract

In the present study, the temperature-dependent optical transmittances of lyotropic nematic calamitic mesophase formed by TTAB-water binary system were measured for certain wavelengths under polarized microscopy to obtain macroscopic order parameter with birefringence. Because birefringence in lyotropics is quite small (order of 10-3), it is very difficult to make sensitive measurements of birefringence and to obtain order parameter. The study easily achieved the order parameter depending on temperature for different wavelengths only using polarized microscopy. Therefore, the parameter could be more easily determined in liquid crystal application and the physical properties of liquid crystals, especially for lyotropics, can be better understood. 

Keywords

Lyotropic nematic mesophases polarized microscopy birefringence order parameter

References

  • [1] de Gennes P. G., Prost J., The Physics of Liquid Crystals, Second ed., Oxford: Oxford Science Publications, (1995).
  • [2] Nastishin Y. A., Liu H., Schneider T., Nazerenko V., Vasyuta R., Shiyanovskii S. V., Lavrentovich O. D., Optical characterization of the nematic lyotropic chromonic liquid crystals: Light absorption, birefrigence, and scalar order parameter, Phys. Rev. E, 72 (2005).
  • [3] Kanwar A., Measurement of order parameter, birefrigence and polarizibility of liquid crystals, J. Opt., 42 (2013) 311-315.
  • [4] Dierking I., Neto A. M. F., Novel trends in lyotropic liquid crystals, Crystals, 10 (2020) 604.
  • [5] Neto A. M. F., Salinas S. R. A., Physics of lyotropic liquid crystals, Oxford: Oxford Science Publications, (2005).
  • [6] Akpinar E., Canioz C., Turkmen M., Reis D., Neto A. M. F., Effect of the surfactant alkyl chain length on the stabilisation of lyotropic nematic phases, Liq. Crys., 45 (2018) 219.
  • [7] Santoro P. A., Sampaio A. R., da Luz H.L.F., Palangana A. J., Temperature dependence of refractive indices near uniaxial–biaxial nematic phase transition, Physics Letters A, 353 (2006) 512-515.
  • [8] Otón E., Otón J. M., Caño-García M., Escolano J. M., Quintana X., Geday M. A., Rapid detection of pathogens using lyotropic liquid crystals, Opt. Express, 27 (2019), 10098-10107.
  • [9] Shiyanovskii S. V., Lavrentovich O. D., Schneider T., Ishikawa T., Smalyukh I. I., Woolverton C. J., Niehaus G. D., Doane K. J., Lyotropic chromonic liquid crystals for biological sensing applications, Mol. Cryst. Liq. Cryst., 434 (2005), 259–270.
  • [10] Luders D.D., Oliveira D.A., Kimura N.M., Simões M, Palangana A.J., Order parameter in the nematic–isotropic phase transition, J. Mol. Liq., 207 (2015) 195–199.
  • [11] Braga W. S., Kimura N. M., Luders D. D., Sampaio A. R., Santoro P. A., Palangana A. J., Reentrant isotropic-calamitic nematic phase transition in potassium laurate-decanol-D2O mixtures, Eur. Phys. J. E, 24 (2007) 247–250.
  • [12] Oliveira D.A., Hioka N., Luders D.D., Kimura N.M., Simões M., Palangana A.J., Absorption coefficient and order parameter in a reentrant isotropic–calamitic nematic phase transition, J. Mol. Liq., 166 (2012) 81-83.
  • [13] Singh A.K., Manohar R., Shukla J.P., Biradar A.M., Refractive indices, order parameter and optical transmittance studies of a nematic liquid crystal mixture, Acta Phys. Pol. A, 110 (2006) 485-493.
  • [14] Kanwar A., Measurement of order parameter, birefrigence and polarizibility of liquid crystals, J. Opt., 42 (2013) 311-315.
  • [15] Kuczyński W., Żywucki B., Małecki J., Determination of orientational order parameter in various liquid-crystalline phases, Mol. Crys. Liq. Crys., 381 (2002) 1-19.
  • [16] Kimura N. M., Santoro P. A., Fernandes P. R. G., Palangana A. J., Reentrant isotropic–discotic nematic lyotropic phase transition: a refractive index study, Liq. Crys., 31 (2004) 347–350.
  • [17] Braga W.S., Santos O.R., Luders D.D., Kimura N.M., Sampaio A.R., Simões M., Palangana A.J., Refractive index measurements in uniaxial and biaxial lyotropic nematic phases, J. Mol. Liq., 213 (2016) 186-190.
  • [18] Akpinar E., Turkmen M., Canioz C., Neto A. M. F.; Role of kosmotrope-chaotrope interactions at micelle surfaces on the stabilization of lyotropic nematic phases, Eur. Phys. J. E, 39 (2016), 1-16.
  • [19] Braga W.S., Santos O.R., Sampaio A.R., Kimura N.M., Simões M., Palangana A.J., An optical conoscopy study of a reentrant discotic nematic-biaxial nematic phase transition, J. Mol. Liq., 170 (2012) 72-75.
  • [20] Santos O.R., Braga W.S., Luders D.D., Kimura N.M., Simões M., Palangana A.J., Study of optical conoscopy in uniaxial and biaxial nematic lyotropic phases, J. Mol. Liq., 197 (2014) 120-123.
There are 20 citations in total.

Details

Primary Language English
Subjects Classical Physics (Other)
Journal Section Natural Sciences
Authors

Aykut Evren Yavuz 0000-0002-5649-6442

Publication Date March 29, 2021
Submission Date September 14, 2020
Acceptance Date November 17, 2020
Published in Issue Year 2021

Cite

APA Yavuz, A. E. (2021). Determination of order parameter and birefringence depending on temperature of nematic calamitic mesophase formed by TTAB + water binary system using polarized microscopy. Cumhuriyet Science Journal, 42(1), 152-155. https://doi.org/10.17776/csj.794871