| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터) |
| 권호 |
46권 2호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Synthesis and characterization of highly stretchable polyurethane polyrotaxane crosslinked polymer gel |
| 초록 |
Polymers with high mechanical strength have attracted much interest, because of numerous potential applications. Nonetheless, the synthesis of highly stretchable polymers is still a challenge. In this study, movable slide-ring polymer gel was synthesized by crosslinking with diisocyanate and end-capped beta cyclodextrin (CD) based polyrotaxane. The polymer was characterized by HNMR and FTIR spectroscopy. Disappearing of the NCO groups suggest the formation the polymer and successful end capping. The formation of polyurea polypropylene glycol (PPG) also confirmed by GPC. This low covered crosslinked polyrotaxane can be stretched without deformation because of the slide ring movement of crosslinked CD on PPG polyurea urethane backbone. The tensile strength of the polymer gel was increased significantly with compared to non-crosslinked polyrotaxane. These unique properties of the resulting gels potentially act as flexible materials and create new opportunities for biomedical applications. |
| 저자 |
하산1, 정일두2
|
| 소속 |
1Pusan National Univ., 2부산대 |
| 키워드 |
polyrotaxane; Slide-ring; Stretchable
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| E-Mail |
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