Photoresponsive foldamers for building blocks of stimuli responsive polymers

2016 Fiscal Year Final Research Report

• Project/Area Number: 15K13709
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Polymer chemistry
• Research Institution: Nara Institute of Science and Technology
• Principal Investigator: NAKASHIMA Takuya 奈良先端科学技術大学院大学, 物質創成科学研究科, 准教授 (70379543)
• Project Period (FY): 2015-04-01 – 2017-03-31
• Keywords: フォトクロミック反応 / 円偏光発光 / 二次構造制御 / 高分子 / キラル

Outline of Final Research Achievements

Photoresponsive helical tetra(2-phenylthiazole)s were synthesized. The tetrathiazoles impart a photoreactive 6-pai system in the main framework. The chirality of helical structure was also controlled by means of introduction of chiral side-chain unit. Strongly fluorescent units such as pyrene and perylene were introduced at the end units of foldamer and these steric interaction was readily controlled by photochromic reaction of tetrathiazole, giving rise to a modulation in circular polarized luminescence property. Non-chiral europium complexes were also introduced in the chiral foldamer, in which the polarized luminescence property was also modulated through a change in the chiral geometry of foldamer in connection with photochromic reaction. Finally, the foldamer framework was introduced in a polymer structure.

Free Research Field

機能物質化学