Development of novel functional low-molecular-weight-gelators based on amidoamine oxides

2015 Fiscal Year Final Research Report

• Project/Area Number: 25350067
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Home economics/Human life
• Research Institution: Osaka Municipal Technical Research Institute
• Principal Investigator: KAKEHASHI Rie 地方独立行政法人大阪市立工業研究所, 有機材料研究部, 研究員 (70294874)
• Co-Investigator(Kenkyū-buntansha): TOKAI Naoji 地方独立行政法人大阪市立工業研究所, 有機材料研究部, 研究員 (40416300) ; MAEDA Hiroshi 九州大学, 名誉教授 (20022626)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 低分子ゲル化剤 / アミドアミンオキシド / ゲル化温度 / 会合体 / 分子集合体 / cryo-TEM / 水素結合 / 分子間相互作用

Outline of Final Research Achievements

Alkylamide amine oxides (AAO) have multiple hydrogen bonding sites. One is an amine oxide group, and the others are amide groups. We found that many of AAO samples formed gels in water, aqueous salt solutions, ionic liquids, and various organic solvents. Gels of salt solutions are applicable for cosmetics, and organogels are applicable for industrial use. AAOs are easily synthesized due to their simple chemical structures, which is a useful property for various fields.
We prepared AAO samples in which the hydrocarbon chains, number and arrangement of amide groups, and spacer length were varied and examined their solution properties and gelation behavior. The gelation temperature Tg, the aggregate structures (fiber-like or ribbon-like) formed in solvents, the solution appearances (transparent or turbid), and viscosity behavior were controlled by the chemical structures of AAOs.

Free Research Field

コロイド界面化学