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F127DA micelle cross-linked PAACA hydrogels with highly stretchable, puncture resistant and self-healing properties
| Content Provider | Semantic Scholar |
|---|---|
| Author | Liu, Yunfei Zhou, Wanfu Zhou, Quan Peng, Kang Yasin, Akram Yang, Haiyang |
| Copyright Year | 2017 |
| Abstract | It is highly desirable to develop hydrogels that possess excellent mechanical properties and self-healing ability. In this study, a highly stretchable, puncture resistant and self-healing hydrogel is prepared, via in situ copolymerization of a functional monomer, N-acryloyl-6-aminocaproic acid (AACA), and Pluronic F127 diacrylate (F127DA) as macro-cross-linkers in aqueous solution at 50 °C. Owing to the toughness-enhancement mechanism induced by F127DA micelles, the elongation ratio and tensile strength at break of the optimal hydrogel reach up to 2500% and 69 kPa, respectively. Meanwhile, a stab test shows that the hydrogels can be stabbed by a steel needle without any damage. What's more, the hydrogels exhibit excellent self-healing ability, due to multiple hydrogen bonding between protonated PAACA groups. And the hydrogels show pH-responsive cyclic swelling and de-swelling behaviors because of the pH sensitivity of AACA. Thus, the present hydrogels would provide new opportunities with regard to the design and practical application of hydrogel systems. |
| Starting Page | 29489 |
| Ending Page | 29495 |
| Page Count | 7 |
| File Format | PDF HTM / HTML |
| DOI | 10.1039/C7RA03137H |
| Alternate Webpage(s) | https://pubs.rsc.org/en/content/articlepdf/2017/ra/c7ra03137h |
| Alternate Webpage(s) | https://doi.org/10.1039/C7RA03137H |
| Volume Number | 7 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
