Novel preparation of supramolecular photonic gels by using polymer self-assembly and osmotic swelling

2014 Fiscal Year Final Research Report

• Project/Area Number: 24685035
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Partial Multi-year Fund
• Research Field: Polymer/Textile materials
• Research Institution: Nagoya University
• Principal Investigator: NORO Atsushi 名古屋大学, 工学(系)研究科(研究院), 助教 (90377896)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: ブロック共重合体 / フォトニック結晶 / フォトニックゲル / 水素結合 / プロトン性イオン液体 / 膨潤 / 不揮発性 / ナノ相分離構造

Outline of Final Research Achievements

By applying the preparation procedure of supramolecular ion gels as nonvolatile physical gels, protic ionic liquids were infiltrated into diblock copolymer thin films bearing proton acceptor functional groups (pyridyl groups) by a drive force of hydrogen bonding, which provided nonvolatile (supramolecular) photonic swollen gel films. The inner structures of photonic gel films were observed by electron microscopy and ultra-small angle X-ray scattering, and photonic crystal properties (reflectance properties) were also investigated. Furthermore, the wavelength of reflected light and the swelling ratio were controlled by using ionic liquid mixture. Reflectance property control by acid addition, temperature variation, and electric field application was also achieved.

Free Research Field

高分子科学