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Highly stretchable and thermally healable polyampholyte hydrogels via hydrophobic modification
| Content Provider | Semantic Scholar |
|---|---|
| Author | Toleutay, Gaukhar Su, Esra Kudaibergenov, Sarkyt E. Okay, Oguz |
| Copyright Year | 2020 |
| Abstract | Aqueous solutions or gels of polyampholytes attract interest for more than half a century due to their several attractive properties. We present here thermally healable hydrophobically modified physical polyampholyte (PA) hydrogels based on oppositely charged 2-acrylamido-2-methylpropane-1-sulfonic acid sodium salt (AMPS) and (3-acrylamidopropyl) trimethylammonium chloride (APTAC) monomers. PA hydrogels were prepared via micellar polymerization technique in the presence of the hydrophobic monomer n-octadecyl acrylate (C18A) in aqueous sodium dodecyl sulfate (SDS) solutions. Charge-balanced PA hydrogels containing 60–90% water exhibit a high tensile strength and stretchability of up to 202 kPa and 1239%, respectively. Above 7 mol% C18A, swollen hydrogels containing around 90% water exhibit much better mechanical properties as compared with the corresponding as-prepared ones because of the stronger hydrophobic interactions in the absence of SDS micelles. Cut-and-heal tests conducted at 50 °C reveal a complete healing efficiency with respect to Young’s modulus for all as-prepared PA hydrogels within 1–4 h. Graphical abstract . . |
| Starting Page | 1 |
| Ending Page | 12 |
| Page Count | 12 |
| File Format | PDF HTM / HTML |
| DOI | 10.1007/s00396-020-04605-8 |
| Alternate Webpage(s) | https://web.itu.edu.tr/okayo/pdf/20Colloid_Gaukhar.pdf |
| Alternate Webpage(s) | https://doi.org/10.1007/s00396-020-04605-8 |
| Journal | Colloid and Polymer Science |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
