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Reinforced hydrogels via carbon nitride initiated polymerization

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Kumru,  Baris
Bernhard Schmidt, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Shalom,  Menny
Menny Shalom, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Antonietti,  Markus
Markus Antonietti, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Schmidt,  Bernhard V. K. J.
Bernhard Schmidt, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Citation

Kumru, B., Shalom, M., Antonietti, M., & Schmidt, B. V. K. J. (2017). Reinforced hydrogels via carbon nitride initiated polymerization. Macromolecules, 50(5), 1862-1869. doi:10.1021/acs.macromol.6b02691.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002C-8C8E-C
Abstract
The utilization of graphitic carbon nitride (g-CN) as photoinitiator for hydrogel formation is reported. On top of the photochemical activity, g-CN entails the role of a reinforcing agent. Hydrogels formed via g-CN (0.6 wt % g-CN and 11 wt % solid content in total) possess significantly increased mechanical strength, around 32 times stronger storage moduli (from 250 Pa for the reference sample up to 8300 Pa for g-CN derived hydrogels) than the ones initiated with common radical initiators. In addition, the g-CN derived hydrogels show mechanical properties that are pH dependent. Therefore, g-CN acts as a photoinitiator for hydrogel formation and as reinforcer at the same time.