Mavi Faz Kolesterik Sıvı Kristalinin Termal Kararlılığı ve Mekanik Davranışları Üzerine Polimer Çeşitliliğinin Etkisi

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.

The Effect of Polymer Type on the Thermal Stability and Mechanical Behavior of Blue Phase Cholesteric Liquid Crystal

In this study, blue phase liquid crystal mixtures were formulated as a first step. These specimens were polymerized via UV (ultraviolet) light after the polymers with different functionality at the different concentrations were added into the blue phase liquid crystals mixtures. Polymerization conditions have been optimized since the intensity of the UV light is very important in completing the polymerization. The thermal stability and mechanical behavior of the polymerized samples were investigated. It has been observed that the thermal and mechanical stabilities of the samples changed as a function of the polymer used.

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