Synthesis and characterization of poly(glycolic acid) (PGA) and its graphene oxide hybrids (PGA-GO).
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| Title: | Synthesis and characterization of poly(glycolic acid) (PGA) and its graphene oxide hybrids (PGA-GO). |
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| Authors: | Sustaita-Rodriguez, J. M.1 (AUTHOR), Medellin-Rodriguez, F. J.1,2 (AUTHOR) francisco.medellin@ciqa.edu.mx, Quintana-Ruiz, M.3 (AUTHOR), Davalos-Montoya, O.1 (AUTHOR), Rodriguez-Villanueva, A.1 (AUTHOR), Ramirez-Vargas, E.2 (AUTHOR), Hsiao, B. S.4 (AUTHOR) |
| Source: | Polymer Bulletin. Jul2023, Vol. 80 Issue 7, p7741-7761. 21p. |
| Subjects: | Graphene oxide, Melting points, Glycolic acid, Molecular weights, Melt crystallization, Heterogenous nucleation |
| Abstract: | PGA and PGA-GO hybrids with relatively low graphene oxide (GO) concentrations (0.5–2.5 wt%) were mass synthesized. In the preparation of GO, a modified Hummer's method was used, and both PGA and PGA-GO followed similar synthesis routes. After forming PGA-GO hybrids, it was demonstrated that the reaction products rendered higher molecular weights as the GO concentration increased. The calorimetric traces showed heterogeneous nucleation and dual crystallization and melting mechanisms, the PGA-GO hybrids having higher melting points than neat PGA. There were no changes in crystal habits in these products, although crystal perfection and crystal thickening depended on the GO concentration. Both effects were associated with the higher melting points of the PGA-GO hybrids. Thermo-gravimetric measurements showed increases in thermal stabilities up to 20% depending on the GO concentration. Isothermal mass crystallization indicated enhancement of crystallization rates and crystal geometry changes from spherical to cylindrical depending on the GO concentration. There were also small clusters and other entities involved in the crystallization process. [ABSTRACT FROM AUTHOR] |
| Copyright of Polymer Bulletin is the property of Springer Nature 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.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 163965128 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Synthesis and characterization of poly(glycolic acid) (PGA) and its graphene oxide hybrids (PGA-GO). – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Sustaita-Rodriguez%2C+J%2E+M%2E%22">Sustaita-Rodriguez, J. M.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Medellin-Rodriguez%2C+F%2E+J%2E%22">Medellin-Rodriguez, F. J.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> francisco.medellin@ciqa.edu.mx</i><br /><searchLink fieldCode="AR" term="%22Quintana-Ruiz%2C+M%2E%22">Quintana-Ruiz, M.</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Davalos-Montoya%2C+O%2E%22">Davalos-Montoya, O.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Rodriguez-Villanueva%2C+A%2E%22">Rodriguez-Villanueva, A.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ramirez-Vargas%2C+E%2E%22">Ramirez-Vargas, E.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hsiao%2C+B%2E+S%2E%22">Hsiao, B. S.</searchLink><relatesTo>4</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Polymer+Bulletin%22">Polymer Bulletin</searchLink>. Jul2023, Vol. 80 Issue 7, p7741-7761. 21p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Graphene+oxide%22">Graphene oxide</searchLink><br /><searchLink fieldCode="DE" term="%22Melting+points%22">Melting points</searchLink><br /><searchLink fieldCode="DE" term="%22Glycolic+acid%22">Glycolic acid</searchLink><br /><searchLink fieldCode="DE" term="%22Molecular+weights%22">Molecular weights</searchLink><br /><searchLink fieldCode="DE" term="%22Melt+crystallization%22">Melt crystallization</searchLink><br /><searchLink fieldCode="DE" term="%22Heterogenous+nucleation%22">Heterogenous nucleation</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: PGA and PGA-GO hybrids with relatively low graphene oxide (GO) concentrations (0.5–2.5 wt%) were mass synthesized. In the preparation of GO, a modified Hummer's method was used, and both PGA and PGA-GO followed similar synthesis routes. After forming PGA-GO hybrids, it was demonstrated that the reaction products rendered higher molecular weights as the GO concentration increased. The calorimetric traces showed heterogeneous nucleation and dual crystallization and melting mechanisms, the PGA-GO hybrids having higher melting points than neat PGA. There were no changes in crystal habits in these products, although crystal perfection and crystal thickening depended on the GO concentration. Both effects were associated with the higher melting points of the PGA-GO hybrids. Thermo-gravimetric measurements showed increases in thermal stabilities up to 20% depending on the GO concentration. Isothermal mass crystallization indicated enhancement of crystallization rates and crystal geometry changes from spherical to cylindrical depending on the GO concentration. There were also small clusters and other entities involved in the crystallization process. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Polymer Bulletin is the property of Springer Nature 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: 10.1007/s00289-022-04415-8 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 21 StartPage: 7741 Subjects: – SubjectFull: Graphene oxide Type: general – SubjectFull: Melting points Type: general – SubjectFull: Glycolic acid Type: general – SubjectFull: Molecular weights Type: general – SubjectFull: Melt crystallization Type: general – SubjectFull: Heterogenous nucleation Type: general Titles: – TitleFull: Synthesis and characterization of poly(glycolic acid) (PGA) and its graphene oxide hybrids (PGA-GO). Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Sustaita-Rodriguez, J. M. – PersonEntity: Name: NameFull: Medellin-Rodriguez, F. J. – PersonEntity: Name: NameFull: Quintana-Ruiz, M. – PersonEntity: Name: NameFull: Davalos-Montoya, O. – PersonEntity: Name: NameFull: Rodriguez-Villanueva, A. – PersonEntity: Name: NameFull: Ramirez-Vargas, E. – PersonEntity: Name: NameFull: Hsiao, B. S. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 07 Text: Jul2023 Type: published Y: 2023 Identifiers: – Type: issn-print Value: 01700839 Numbering: – Type: volume Value: 80 – Type: issue Value: 7 Titles: – TitleFull: Polymer Bulletin Type: main |
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