Surface modification of graphene oxide for preparing self‐healing nanocomposite hydrogels.
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| Title: | Surface modification of graphene oxide for preparing self‐healing nanocomposite hydrogels. |
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| Authors: | Çeper, Ezgi B.1 (AUTHOR), Su, Esra1 (AUTHOR), Okay, Oguz1 (AUTHOR) okayo@itu.edu.tr, Güney, Orhan1 (AUTHOR) oguney@itu.edu.tr |
| Source: | Polymers for Advanced Technologies. Jul2022, Vol. 33 Issue 7, p2276-2288. 13p. |
| Subjects: | Graphene oxide, Nanocomposite materials, Polymer networks, Vinyl polymers, Hydrogels, Addition polymerization, Light scattering |
| Abstract: | In this work, graphene oxide (GO) and vinyl modified GO (V‐GO)‐based nanocomposite hydrogels with improved mechanical property and self‐healing ability have been synthesized and characterized. GO first was synthesized by modified Hummer's method using graphite powder and then functionalized with vinyl groups by using (3‐mercaptopropyl) trimethoxysilane (MPTS) via silanization method. The GO and V‐GO nanoparticles were characterized by FT‐IR, UV–vis spectroscopy, SEM, and dynamic light scattering technique (DLS). Hydrogels were obtained by in‐situ free‐radical polymerizations of acrylamide (AAm) and [3‐(methacryloylamino)propyl] trimethylammonium chloride (MAPTAC) monomers in the presence of GO and V‐GO nanoparticles. The effects of the amount of GO and V‐GO on the gelation profile and viscoelastic characteristics of the hydrogels were studied. The pH‐responsive action, swelling behavior, and swelling kinetics of the hydrogels with various GO and V‐GO contents were also evaluated. The mechanical performance of nanocomposite cationic hydrogels prepared with GO and V‐GO nanosheets was compared to the neat AAm‐MAPTAC hydrogels. The self‐healing ability of the hydrogels were elucidated as a function of the amount of GO and V‐GO nanosheets bound to the polymer network by physical interactions and chemical cross‐links, respectively. [ABSTRACT FROM AUTHOR] |
| Copyright of Polymers for Advanced Technologies is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
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| Header | DbId: egs DbLabel: Engineering Source An: 157299393 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Surface modification of graphene oxide for preparing self‐healing nanocomposite hydrogels. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Çeper%2C+Ezgi+B%2E%22">Çeper, Ezgi B.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Su%2C+Esra%22">Su, Esra</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Okay%2C+Oguz%22">Okay, Oguz</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> okayo@itu.edu.tr</i><br /><searchLink fieldCode="AR" term="%22Güney%2C+Orhan%22">Güney, Orhan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> oguney@itu.edu.tr</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Polymers+for+Advanced+Technologies%22">Polymers for Advanced Technologies</searchLink>. Jul2022, Vol. 33 Issue 7, p2276-2288. 13p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Graphene+oxide%22">Graphene oxide</searchLink><br /><searchLink fieldCode="DE" term="%22Nanocomposite+materials%22">Nanocomposite materials</searchLink><br /><searchLink fieldCode="DE" term="%22Polymer+networks%22">Polymer networks</searchLink><br /><searchLink fieldCode="DE" term="%22Vinyl+polymers%22">Vinyl polymers</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrogels%22">Hydrogels</searchLink><br /><searchLink fieldCode="DE" term="%22Addition+polymerization%22">Addition polymerization</searchLink><br /><searchLink fieldCode="DE" term="%22Light+scattering%22">Light scattering</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: In this work, graphene oxide (GO) and vinyl modified GO (V‐GO)‐based nanocomposite hydrogels with improved mechanical property and self‐healing ability have been synthesized and characterized. GO first was synthesized by modified Hummer's method using graphite powder and then functionalized with vinyl groups by using (3‐mercaptopropyl) trimethoxysilane (MPTS) via silanization method. The GO and V‐GO nanoparticles were characterized by FT‐IR, UV–vis spectroscopy, SEM, and dynamic light scattering technique (DLS). Hydrogels were obtained by in‐situ free‐radical polymerizations of acrylamide (AAm) and [3‐(methacryloylamino)propyl] trimethylammonium chloride (MAPTAC) monomers in the presence of GO and V‐GO nanoparticles. The effects of the amount of GO and V‐GO on the gelation profile and viscoelastic characteristics of the hydrogels were studied. The pH‐responsive action, swelling behavior, and swelling kinetics of the hydrogels with various GO and V‐GO contents were also evaluated. The mechanical performance of nanocomposite cationic hydrogels prepared with GO and V‐GO nanosheets was compared to the neat AAm‐MAPTAC hydrogels. The self‐healing ability of the hydrogels were elucidated as a function of the amount of GO and V‐GO nanosheets bound to the polymer network by physical interactions and chemical cross‐links, respectively. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Polymers for Advanced Technologies is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1002/pat.5680 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 13 StartPage: 2276 Subjects: – SubjectFull: Graphene oxide Type: general – SubjectFull: Nanocomposite materials Type: general – SubjectFull: Polymer networks Type: general – SubjectFull: Vinyl polymers Type: general – SubjectFull: Hydrogels Type: general – SubjectFull: Addition polymerization Type: general – SubjectFull: Light scattering Type: general Titles: – TitleFull: Surface modification of graphene oxide for preparing self‐healing nanocomposite hydrogels. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Çeper, Ezgi B. – PersonEntity: Name: NameFull: Su, Esra – PersonEntity: Name: NameFull: Okay, Oguz – PersonEntity: Name: NameFull: Güney, Orhan IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 07 Text: Jul2022 Type: published Y: 2022 Identifiers: – Type: issn-print Value: 10427147 Numbering: – Type: volume Value: 33 – Type: issue Value: 7 Titles: – TitleFull: Polymers for Advanced Technologies Type: main |
| ResultId | 1 |
