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Yasuo Norikane,a Yuki Hiraib and Masaru Yoshida

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Presentation on theme: "Yasuo Norikane,a Yuki Hiraib and Masaru Yoshida"— Presentation transcript:

1 Yasuo Norikane,a Yuki Hiraib and Masaru Yoshida
Photoinduced isothermal phase transitions of liquid-crystalline macrocyclic azobenzenes Yasuo Norikane,a Yuki Hiraib and Masaru Yoshida

2 LC or crystalline phase
switching self-assemble property by light → induce phase transition      ordered states ⇔ disordered states LC or crystalline phase Isotropic phase

3 Molecules design ○macrocyclic core ○flexible and long alkoxy chain → liquid crystal enhance dynamic of nature of molecule

4 Photoinduced tarsition

5 The LC properties of 2b and 3b by differential scanning calorimetry
Heating and cooling cycle 5K/min LC state ℃ heating(> 5K/min) 121-84℃ cooling (>5K/min) LC state heating (>5K/min) below 60℃ cooling (>5K/min) crystaline below 110℃(1K/min) 

6 by X-ray diffraction mesurements

7

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