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Preparation, surface modification and characterisation of solution cast starch PVA blended films

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Title: Preparation, surface modification and characterisation of solution cast starch PVA blended films
Authors: Jayasekara, R. rjayasekara@swin.edu.au, Harding, I.1, Bowater, I.1, Christie, G.B.Y.1, Lonergan, G.T.1
Source: Polymer Testing. Feb2004, Vol. 23 Issue 1, p17. 11p.
Subjects: Polyvinyl alcohol, Starch, Glyceryl ethers, Chitosan, Biodegradation
Abstract: Several blends have been prepared of polyvinyl alcohol, starch and glycerol. The blend containing 20% polyvinyl alcohol has been modified by application of chitosan to the surface. The blend, and its modified form have been characterised by atomic force microscopy, x-ray diffraction, Fourier transform infra-red spectroscopy, contact angle measurements, 13C-NMR spectroscopy and scanning electron microscopy. The blended films were flexible and homogeneous on a macroscopic scale but on a microscopic scale there seemed to be small patches of individual components. Surface modification altered some of the characteristics of the film. The blends had surface roughness intermediate between that of the pure components. The addition of chitosan made the film more hydrophobic than the unmodified film but slightly less than the starch film. There was no evidence of new bond formation among the individual components. Solution casting reduced the overall crystallinity in the blended films. [Copyright &y& Elsevier]
Copyright of Polymer Testing is the property of Elsevier B.V. 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
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Header DbId: egs
DbLabel: Engineering Source
An: 11401165
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Preparation, surface modification and characterisation of solution cast starch PVA blended films
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  Data: <searchLink fieldCode="AR" term="%22Jayasekara%2C+R%2E%22">Jayasekara, R.</searchLink><i> rjayasekara@swin.edu.au</i><br /><searchLink fieldCode="AR" term="%22Harding%2C+I%2E%22">Harding, I.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Bowater%2C+I%2E%22">Bowater, I.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Christie%2C+G%2EB%2EY%2E%22">Christie, G.B.Y.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Lonergan%2C+G%2ET%2E%22">Lonergan, G.T.</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Polymer+Testing%22">Polymer Testing</searchLink>. Feb2004, Vol. 23 Issue 1, p17. 11p.
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  Data: <searchLink fieldCode="DE" term="%22Polyvinyl+alcohol%22">Polyvinyl alcohol</searchLink><br /><searchLink fieldCode="DE" term="%22Starch%22">Starch</searchLink><br /><searchLink fieldCode="DE" term="%22Glyceryl+ethers%22">Glyceryl ethers</searchLink><br /><searchLink fieldCode="DE" term="%22Chitosan%22">Chitosan</searchLink><br /><searchLink fieldCode="DE" term="%22Biodegradation%22">Biodegradation</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: Several blends have been prepared of polyvinyl alcohol, starch and glycerol. The blend containing 20% polyvinyl alcohol has been modified by application of chitosan to the surface. The blend, and its modified form have been characterised by atomic force microscopy, x-ray diffraction, Fourier transform infra-red spectroscopy, contact angle measurements, 13C-NMR spectroscopy and scanning electron microscopy. The blended films were flexible and homogeneous on a macroscopic scale but on a microscopic scale there seemed to be small patches of individual components. Surface modification altered some of the characteristics of the film. The blends had surface roughness intermediate between that of the pure components. The addition of chitosan made the film more hydrophobic than the unmodified film but slightly less than the starch film. There was no evidence of new bond formation among the individual components. Solution casting reduced the overall crystallinity in the blended films. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Polymer Testing is the property of Elsevier B.V. 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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      – Type: doi
        Value: 10.1016/S0142-9418(03)00049-7
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      – Code: eng
        Text: English
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        Type: general
      – SubjectFull: Starch
        Type: general
      – SubjectFull: Glyceryl ethers
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      – SubjectFull: Chitosan
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      – SubjectFull: Biodegradation
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              Text: Feb2004
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              Y: 2004
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