Reinforced Hydrogels via Carbon Nitride Initiated Polymerization

Baris Kumru; Menny Shalom; Markus Antonietti; Bernhard V.K.J. Schmidt

doi:10.1021/acs.macromol.6b02691

Reinforced Hydrogels via Carbon Nitride Initiated Polymerization

Baris Kumru, Menny Shalom, Markus Antonietti, Bernhard V.K.J. Schmidt

Department of Chemistry

Ben-Gurion University of the Negev

Research output: Contribution to journal › Article › peer-review

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.

Original language	American English
Pages (from-to)	1862-1869
Number of pages	8
Journal	Macromolecules
Volume	50
Issue number	5
DOIs	https://doi.org/10.1021/acs.macromol.6b02691
State	Published - 14 Mar 2017

All Science Journal Classification (ASJC) codes

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

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10.1021/acs.macromol.6b02691

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title = "Reinforced Hydrogels via Carbon Nitride Initiated Polymerization",

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.",

author = "Baris Kumru and Menny Shalom and Markus Antonietti and Schmidt, \{Bernhard V.K.J.\}",

note = "Publisher Copyright: {\textcopyright} 2017 American Chemical Society.",

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AU - Shalom, Menny

AU - Antonietti, Markus

AU - Schmidt, Bernhard V.K.J.

PY - 2017/3/14

Y1 - 2017/3/14

N2 - 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.

AB - 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.

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EP - 1869

JO - Macromolecules

JF - Macromolecules

IS - 5

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Reinforced Hydrogels via Carbon Nitride Initiated Polymerization

Abstract

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