| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 가을 (10/09 ~ 10/11, 제주컨벤션센터) |
| 권호 |
44권 2호 |
| 발표분야 |
고분자합성 |
| 제목 |
A Reversibly Mechanochromic Polydiacetylene |
| 초록 |
Polydiacetylenes (PDAs) are supramolecular conjugated polymers having unique optical property. PDAs that have distinct alternating ene-yne backbones are polymerized from self-assembled supramolecular diacetylene monomers by UV irradiation or thermal annealing. We developed a PDA that displays mechanochromism based on a disulfide containing diacetylene monomer. The mechanochromic property could be reversibly controlled by a sequential grinding-heating-cooling cycle. The original blue color of the PDA is regenerated via a metastable red-color state by utilizing a thermochromic (heating-cooling) process. The excellent recyclability of the new PDA is a consequence of a combination of effects associated with extensive ∏-∏ stacking and H-bonding interactions, van der Waals forces, as well as the structural rigidity of the conjugated ene-yne backbone. |
| 저자 |
황혜민, 김종만
|
| 소속 |
한양대 |
| 키워드 |
Mechanochromic; Polydiacetylene; stimulus-responsive; conjugated polymer
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| E-Mail |
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