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Enhancing the Thermal, Mechanical and Swelling Properties of PVA/Starch Nanocomposite Membranes Incorporating g-C3N4.

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Title: Enhancing the Thermal, Mechanical and Swelling Properties of PVA/Starch Nanocomposite Membranes Incorporating g-C3N4.
Authors: Ahmed, Arooj1 (AUTHOR), Niazi, Muhammad Bilal Khan1 (AUTHOR) m.b.k.niazi@scme.nust.edu.pk, Jahan, Zaib1 (AUTHOR), Samin, Ghufrana2 (AUTHOR), Pervaiz, Erum1 (AUTHOR), Hussain, Arshad1 (AUTHOR), Mehran, Muhammad Taqi1 (AUTHOR)
Source: Journal of Polymers & the Environment. Jan2020, Vol. 28 Issue 1, p100-115. 16p.
Subject Terms: *Polymers, Polymeric membranes, Starch, Polyvinyl alcohol, Nitrides, Water vapor, Thermal stability
Abstract: A ground-breaking and soft nanomaterial, namely graphitic carbon nitride (g-C3N4) has gained importance as two-dimensional filler in polymeric membranes. In this research, g-C3N4 was synthesized by "thermal oxidation etching process", employing melamine as a precursor. The porous nanosheets were characterized by SEM, XRD and FTIR. g-C3N4 nanosheets showed remarkable thermal stability up to 620 °C. The PVA starch nanocomposite membranes were fabricated with varying amounts of g-C3N4. Owing to strong interactions between g-C3N4, and polymers, the composite membranes showed exceptional thermal and mechanical stability and resist to degrade in various mediums including water, saline and blood. The hybrid membranes showed remarkable swelling abilities up to 96 h. Moreover, g-C3N4 enhanced the hydrophilicity, consequently, moisture retention capability and water vapor transmission were improved. XRD and SEM results revealed the proper dispersion of g-C3N4 into the polymeric matrix. The results suggested that prepared hybrid PVA/St/g-C3N4 membranes could be used as wound dressings. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Polymers & the Environment 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.)
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  Data: Enhancing the Thermal, Mechanical and Swelling Properties of PVA/Starch Nanocomposite Membranes Incorporating g-C3N4.
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  Data: <searchLink fieldCode="AR" term="%22Ahmed%2C+Arooj%22">Ahmed, Arooj</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Niazi%2C+Muhammad+Bilal+Khan%22">Niazi, Muhammad Bilal Khan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> m.b.k.niazi@scme.nust.edu.pk</i><br /><searchLink fieldCode="AR" term="%22Jahan%2C+Zaib%22">Jahan, Zaib</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Samin%2C+Ghufrana%22">Samin, Ghufrana</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Pervaiz%2C+Erum%22">Pervaiz, Erum</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hussain%2C+Arshad%22">Hussain, Arshad</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Mehran%2C+Muhammad+Taqi%22">Mehran, Muhammad Taqi</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Polymers+%26+the+Environment%22">Journal of Polymers & the Environment</searchLink>. Jan2020, Vol. 28 Issue 1, p100-115. 16p.
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  Data: *<searchLink fieldCode="DE" term="%22Polymers%22">Polymers</searchLink><br /><searchLink fieldCode="DE" term="%22Polymeric+membranes%22">Polymeric membranes</searchLink><br /><searchLink fieldCode="DE" term="%22Starch%22">Starch</searchLink><br /><searchLink fieldCode="DE" term="%22Polyvinyl+alcohol%22">Polyvinyl alcohol</searchLink><br /><searchLink fieldCode="DE" term="%22Nitrides%22">Nitrides</searchLink><br /><searchLink fieldCode="DE" term="%22Water+vapor%22">Water vapor</searchLink><br /><searchLink fieldCode="DE" term="%22Thermal+stability%22">Thermal stability</searchLink>
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  Data: A ground-breaking and soft nanomaterial, namely graphitic carbon nitride (g-C3N4) has gained importance as two-dimensional filler in polymeric membranes. In this research, g-C3N4 was synthesized by "thermal oxidation etching process", employing melamine as a precursor. The porous nanosheets were characterized by SEM, XRD and FTIR. g-C3N4 nanosheets showed remarkable thermal stability up to 620 °C. The PVA starch nanocomposite membranes were fabricated with varying amounts of g-C3N4. Owing to strong interactions between g-C3N4, and polymers, the composite membranes showed exceptional thermal and mechanical stability and resist to degrade in various mediums including water, saline and blood. The hybrid membranes showed remarkable swelling abilities up to 96 h. Moreover, g-C3N4 enhanced the hydrophilicity, consequently, moisture retention capability and water vapor transmission were improved. XRD and SEM results revealed the proper dispersion of g-C3N4 into the polymeric matrix. The results suggested that prepared hybrid PVA/St/g-C3N4 membranes could be used as wound dressings. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Polymers & the Environment 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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        Value: 10.1007/s10924-019-01592-y
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      – Code: eng
        Text: English
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      – SubjectFull: Polymers
        Type: general
      – SubjectFull: Polymeric membranes
        Type: general
      – SubjectFull: Starch
        Type: general
      – SubjectFull: Polyvinyl alcohol
        Type: general
      – SubjectFull: Nitrides
        Type: general
      – SubjectFull: Water vapor
        Type: general
      – SubjectFull: Thermal stability
        Type: general
    Titles:
      – TitleFull: Enhancing the Thermal, Mechanical and Swelling Properties of PVA/Starch Nanocomposite Membranes Incorporating g-C3N4.
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            NameFull: Ahmed, Arooj
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            NameFull: Niazi, Muhammad Bilal Khan
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            NameFull: Jahan, Zaib
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              M: 01
              Text: Jan2020
              Type: published
              Y: 2020
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