2023 Fiscal Year Final Research Report
Development of mechanorisponsive metallopolymers with high toughness
| Project/Area Number |
21K05203
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Review Section |
Basic Section 35020:Polymer materials-related
|
|---|
| Research Institution | Kansai University |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2021-04-01 – 2024-03-31
|
| Keywords | メカノクロミズム / ポリウレタン / 白金錯体 / メタロポリマー / エラストマー / 蛍光 |
|---|
| Outline of Final Research Achievements |
In this study, mechanochromic metallopolymers with good toughness and flexibility, in which the fluorescent color changes sensitively in response to external stress, were developed by incorporating mechanically responsive platinum complexes in the polyurethane scaffolds.
Polyurethanes obtained by platinum-acetylide complexes with alcohol moieties as monomers exhibited fluorescence changes from orange to brown upon grinding. The segmented polyurethanes obtained by adding long-chain diols had large molecular weights, excellent film-forming properties, and good mechanical properties. The segmented polyurethanes containing platinum-acetylide complex also exhibited mechanochromic behavior, changing color and fluorescence color during elongation and compression.
|
| Free Research Field |
高分子材料
|
| Academic Significance and Societal Importance of the Research Achievements |
メカノクロミック挙動を示す材料は，応力検知，破壊機構の解明，危険予知等が可能となる。本研究で得られた白金錯体含有ポリウレタンもこれらの用途への応用が期待される。またメカノクロミック部位をポリマー主鎖中に組み込むことで，力学応答性部位が高分子マトリクス中から流出することもなく，耐久性のある材料開発が見込まれる。
|
