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| 001 | 829811 | ||
| 005 | 20240619091855.0 | ||
| 024 | 7 | _ | |a 10.1021/acs.macromol.7b00319 |2 doi |
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| 100 | 1 | _ | |a Mihajlovic, Marko |0 P:(DE-HGF)0 |b 0 |
| 245 | _ | _ | |a Tough Supramolecular Hydrogel Based on Strong Hydrophobic Interactions in a Multiblock Segmented Copolymer |
| 260 | _ | _ | |a Washington, DC |c 2017 |b Soc. |
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| 520 | _ | _ | |a We report the preparation and structural and mechanical characterization of a tough supramolecular hydrogel, based exclusively on hydrophobic association. The system consists of a multiblock, segmented copolymer of hydrophilic poly(ethylene glycol) (PEG) and hydrophobic dimer fatty acid (DFA) building blocks. A series of copolymers containing 2K, 4K, and 8K PEG were prepared. Upon swelling in water, a network is formed by self-assembly of hydrophobic DFA units in micellar domains, which act as stable physical cross-link points. The resulting hydrogels are noneroding and contain 75–92 wt % of water at swelling equilibrium. Small-angle neutron scattering (SANS) measurements showed that the aggregation number of micelles ranges from 2 × 102 to 6 × 102 DFA units, increasing with PEG molecular weight. Mechanical characterization indicated that the hydrogel containing PEG 2000 is mechanically very stable and tough, possessing a tensile toughness of 4.12 MJ/m3. The high toughness, processability, and ease of preparation make these hydrogels very attractive for applications where mechanical stability and load bearing features of soft materials are required. |
| 536 | _ | _ | |a 551 - Functional Macromolecules and Complexes (POF3-551) |0 G:(DE-HGF)POF3-551 |c POF3-551 |f POF III |x 0 |
| 536 | _ | _ | |a 6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623) |0 G:(DE-HGF)POF3-6G4 |c POF3-623 |f POF III |x 1 |
| 536 | _ | _ | |a 6215 - Soft Matter, Health and Life Sciences (POF3-621) |0 G:(DE-HGF)POF3-6215 |c POF3-621 |f POF III |x 2 |
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| 700 | 1 | _ | |a Wyss, Hans M. |0 P:(DE-HGF)0 |b 3 |
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| 700 | 1 | _ | |a Sijbesma, Rint P. |0 P:(DE-HGF)0 |b 5 |e Corresponding author |
| 773 | _ | _ | |a 10.1021/acs.macromol.7b00319 |g Vol. 50, no. 8, p. 3333 - 3346 |0 PERI:(DE-600)1491942-4 |n 8 |p 3333 - 3346 |t Macromolecules |v 50 |y 2017 |x 1520-5835 |
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