Research Article
Mavi Faz Kolesterik Sıvı Kristalinin Termal Kararlılığı ve Mekanik Davranışları Üzerine Polimer Çeşitliliğinin Etkisi
Abstract
Bu çalışma kapsamında, ilk olarak, mavi faz kolesterik sıvı kristal örnekleri hazırlanmıştır. Hazırlanan bu numuneler içerisine farklı konsantrasyonlarda ve farklı kimyasal yapılardaki çeşitli polimerler eklenerek UV (ultraviyole) ışık altında polimerizasyonları yapılmıştır. UV ışığının yoğunluğu, polimerizasyon süresi polimerizasyonun tamamlanması açısından oldukça önemli olduğu için polimerzasyon koşulları optimize edilmiştir. Polimerizasyonları tamamlanan numunelerin termal kararlılıkları, mekanik davranışları incelenmiştir. Polimerizasyon sonucunda incelenen numunelerde termal kararlılığın ve mekanik dayanıklılığın, kullanılan polimerin bir fonksiyonu olarak değiştiği görülmüştür.
Keywords
References
- Kitzerow H.-S., 2009. In Blue phase come of age: a review. L.-C. Chien and M.-H. W.,(Editörler), Proceedings of SPIE Emerging Liquid Crystal Technologies, 7232, 723205.
- Coles HJ, and Pivnenko MN., 2005. Liquid crystal blue phases with a wide temperature range. Nature, 436, 997-1000.
- Choi H., Higuchi H, Ogawa Y., and Kikuchi H., 2012. Polymer-stabilized supercooled blue phase. Appl. Phys. Lett., 101, 131904 .
- Kikuchi H, Yokota M, Hisakado Y, Yang H, and Kajiyama T., 2002. Polymer-stabilized liquid crystal blue phases. Nat. Mater., 1, 64-72.
- Suda M., Kameyama N., Suzuki M., Kawamura N., Einaga Y., 2007. Reversible Phototuning of Ferromagnetism at Au–S Interfaces at Room Temperature. Angew. Chem. Int. Ed., 47, 160–163.
- Gerber, P. R., 1985. Electro-optical effects of a small-pitch blue phase system. Mol. Cryst. Liq.Cryst. 116, 197-206.
- Hisakado Y, Kikuchi H, and Nagamura T., 2005. Large electro-optic kerr effect in polymer-stabilized liquid-crystalline blue phases. Adv. Mater., 17, 96-98.
- Hussain Z, Masutani A, Danner D, Pleis F, Hollfelder N, Nelles G, and Kilickiran P., 2011. Ultra fast polymer network blue phase liquid crystals. J. Appl. Phys., 109, 114513-4.
- Hikmet R. A. M., 1990. Electrically induced light scattering from anisotropic gels. J. Appl. Phys., 68, 4406-4412.
- Kemiklioglu E., Hwang J.-Y. and Chien L.-C., 2014. Stabilization of Cholesteric Blue Phases Using Polymerized Nanoparticles. Physical Review E, 89, 042502.
- Kemiklioglu E., Chien L.C., Haseba Yasuhiro, 2014. Polymer Effect on Polymer-Stabilized Blue Phase Liquid Crystals. SID Symposium digest of technical papers, 45 (1).
- Iwata T., Suzuki K., Amaya N., Higuchi H., Masunaga H. Sasaki S., and Kikuchi H., 2009. Control of cross-linking polymerization kinetics and polymer aggregated structure in polymer-stabilized liquid crystalline blue phases. Macromolecules, 42, 2002-2008.
- Kikuchi H., Hisakado Y., Uchida K., Nagamura T., Kajiyama T., 2004. Fast electro-optical effect in polymer-stabilized blue phases. Proceedings of SPIE, 5518, 182-190.
- Gardiner D. J., Morris S. P., Castles F., Qasim M. M., Kim W. S., Choi S. S., Park H. J., Chung I. J., Coles H. J., 2011. Polymer stabilized chiral nematic liquid crystals for fast switching and high contrast electro-optic devices. Appl. Phys. Lett. 98, 263508-3.
- Gandhi S. S., Chien L.C., 2017. Unraveling the Mystery of the Blue Fog: Structure, Properties, and Applications of Amorphous Blue Phase III. Adv. Mater, 29, 1704296-13.
- Martinez-Gonzalez J. A., Li X., Sadati1 M., Zhou Y., Zhang R., Nealey P. F., de Pablo J. J., 2017. Directed self-assembly of liquid crystalline blue-phases into ideal single-crystals. Nat.Commun., 8, 15854-15864.
- Lin Y. H., Chen H. S., Lin H. C., Tsou Y. S., Hsu H. K., Li W. Y., 2010. Polarizer-free and fast response microlens arrays using polymer-stabilized blue phase liquid crystals. Appl. Phys. Lett., 96, 113505-3.
- Kemiklioglu E., Chien L.C., 2016. Electro-optical Properties of Carbon Nanotubes Doped Polymer Stabilized Blue Phase Liquid Crystal. Liquid Crystals, 43, 1067-1074.
- Wang M., Kemiklioglu E., Hwang J.-Y. and Chien L.-C., 2013. Colloids Mediated Blue Phase Liquid Crystals. Proc. of SPIE Emerging Liquid Crystal Technologies VIII, 86420W.
- Yang Y.-C., Yang D. K., 2011. Electro-optic Kerr effect in polymer stabilized isotropic liquid crystals. Appl. Phys. Lett., 98, 023502.
- ASTM C 158 (2017): Standard Test Methods for Strength of Glass by Flexure.
Year 2018,
Volume: 18 Issue: 1, 403 - 411, 30.04.2018
Abstract
References
- Kitzerow H.-S., 2009. In Blue phase come of age: a review. L.-C. Chien and M.-H. W.,(Editörler), Proceedings of SPIE Emerging Liquid Crystal Technologies, 7232, 723205.
- Coles HJ, and Pivnenko MN., 2005. Liquid crystal blue phases with a wide temperature range. Nature, 436, 997-1000.
- Choi H., Higuchi H, Ogawa Y., and Kikuchi H., 2012. Polymer-stabilized supercooled blue phase. Appl. Phys. Lett., 101, 131904 .
- Kikuchi H, Yokota M, Hisakado Y, Yang H, and Kajiyama T., 2002. Polymer-stabilized liquid crystal blue phases. Nat. Mater., 1, 64-72.
- Suda M., Kameyama N., Suzuki M., Kawamura N., Einaga Y., 2007. Reversible Phototuning of Ferromagnetism at Au–S Interfaces at Room Temperature. Angew. Chem. Int. Ed., 47, 160–163.
- Gerber, P. R., 1985. Electro-optical effects of a small-pitch blue phase system. Mol. Cryst. Liq.Cryst. 116, 197-206.
- Hisakado Y, Kikuchi H, and Nagamura T., 2005. Large electro-optic kerr effect in polymer-stabilized liquid-crystalline blue phases. Adv. Mater., 17, 96-98.
- Hussain Z, Masutani A, Danner D, Pleis F, Hollfelder N, Nelles G, and Kilickiran P., 2011. Ultra fast polymer network blue phase liquid crystals. J. Appl. Phys., 109, 114513-4.
- Hikmet R. A. M., 1990. Electrically induced light scattering from anisotropic gels. J. Appl. Phys., 68, 4406-4412.
- Kemiklioglu E., Hwang J.-Y. and Chien L.-C., 2014. Stabilization of Cholesteric Blue Phases Using Polymerized Nanoparticles. Physical Review E, 89, 042502.
- Kemiklioglu E., Chien L.C., Haseba Yasuhiro, 2014. Polymer Effect on Polymer-Stabilized Blue Phase Liquid Crystals. SID Symposium digest of technical papers, 45 (1).
- Iwata T., Suzuki K., Amaya N., Higuchi H., Masunaga H. Sasaki S., and Kikuchi H., 2009. Control of cross-linking polymerization kinetics and polymer aggregated structure in polymer-stabilized liquid crystalline blue phases. Macromolecules, 42, 2002-2008.
- Kikuchi H., Hisakado Y., Uchida K., Nagamura T., Kajiyama T., 2004. Fast electro-optical effect in polymer-stabilized blue phases. Proceedings of SPIE, 5518, 182-190.
- Gardiner D. J., Morris S. P., Castles F., Qasim M. M., Kim W. S., Choi S. S., Park H. J., Chung I. J., Coles H. J., 2011. Polymer stabilized chiral nematic liquid crystals for fast switching and high contrast electro-optic devices. Appl. Phys. Lett. 98, 263508-3.
- Gandhi S. S., Chien L.C., 2017. Unraveling the Mystery of the Blue Fog: Structure, Properties, and Applications of Amorphous Blue Phase III. Adv. Mater, 29, 1704296-13.
- Martinez-Gonzalez J. A., Li X., Sadati1 M., Zhou Y., Zhang R., Nealey P. F., de Pablo J. J., 2017. Directed self-assembly of liquid crystalline blue-phases into ideal single-crystals. Nat.Commun., 8, 15854-15864.
- Lin Y. H., Chen H. S., Lin H. C., Tsou Y. S., Hsu H. K., Li W. Y., 2010. Polarizer-free and fast response microlens arrays using polymer-stabilized blue phase liquid crystals. Appl. Phys. Lett., 96, 113505-3.
- Kemiklioglu E., Chien L.C., 2016. Electro-optical Properties of Carbon Nanotubes Doped Polymer Stabilized Blue Phase Liquid Crystal. Liquid Crystals, 43, 1067-1074.
- Wang M., Kemiklioglu E., Hwang J.-Y. and Chien L.-C., 2013. Colloids Mediated Blue Phase Liquid Crystals. Proc. of SPIE Emerging Liquid Crystal Technologies VIII, 86420W.
- Yang Y.-C., Yang D. K., 2011. Electro-optic Kerr effect in polymer stabilized isotropic liquid crystals. Appl. Phys. Lett., 98, 023502.
- ASTM C 158 (2017): Standard Test Methods for Strength of Glass by Flexure.
There are 21 citations in total.
Details
| Primary Language | Turkish |
|---|---|
| Subjects | Engineering |
| Journal Section | Articles |
| Authors | |
| Publication Date | April 30, 2018 |
| Submission Date | August 16, 2017 |
| Published in Issue | Year 2018 Volume: 18 Issue: 1 |