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has been cited by the following article:

• TITLE: Thermal and Photo Alignment Behavior of Polyethylene Imine Having Methoxy Substituent Azobenzene Side Chain Group

  AUTHORS: Mohammad Kamruzzaman, Sun-nam Kim, Yutaka Kuwahara, Tomonari Ogata, Seiji Kurihara

  KEYWORDS: Azobenzene Polymer; Thermal Alignment Behavior; Liquid Crystalline Properties; Out-of-Plane Ordering

  JOURNAL NAME: Open Journal of Polymer Chemistry, Vol.3 No.4, September 18, 2013

  ABSTRACT: Novel type of polyethylene imine having methoxy (–OCH3) substituent azobenzene side chain group through eight methylene spacer group (PEI8M) was successfully synthesized and characterized by the polymer by 1H NMR, differential scanning calorimetry, polarized optical microscopic and X-ray diffraction analysis. Synthesized polymer possessed liquid crystalline (LC) properties. Spin coated PEI8M film showed out-of-plane molecular orientation on annealing and non-polarized visible light irradiation. PEI8M in solid film exhibited photoresponsive properties upon irradiation of UV and visible light. PEI8M film also exhibited reversible molecular orientation from random state to out-of-plane and from out-of-plane to random state on annealing, non-polarized UV and visible light irradiation.