Plasma-enhanced synthesis of maltodextrin-polydimethylsiloxane graft copolymers

Ether‐extracted maltodextrin (MD) powder was surface functionalized under 13.56‐MHz RF–SiCl4‐plasma conditions, and consecutively in situ aminated and grafted using dichlorodimethylsilane. Survey and high‐resolution X‐ray photoelectron spectroscopy, FTIR evaluations, fluorescence‐labeling technique,...

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Bibliographic Details
Published in:Journal of applied polymer science 2001-05, Vol.80 (8), p.1120-1129
Main Authors: Ma, Y. C., Manolache, S., Sarmadi, M., Denes, F.
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
functionalized surface
maltodextrin
Physicochemistry of polymers
plasma
polydimethylsiloxane grafted
Polymers and radiations
Properties and characterization
silicon tetrachloride
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Summary:Ether‐extracted maltodextrin (MD) powder was surface functionalized under 13.56‐MHz RF–SiCl4‐plasma conditions, and consecutively in situ aminated and grafted using dichlorodimethylsilane. Survey and high‐resolution X‐ray photoelectron spectroscopy, FTIR evaluations, fluorescence‐labeling technique, SEM, and DTA/TG analyses prove the presence of a graft‐copolymer layer on the modified starch‐granule surfaces and the existence of a significantly changed surface morphology of the starch granules, as a result of the grafting reactions. The hydrophobic nature of the polydimethylsiloxane‐grafted starch and its significantly changed thermal behaviors were also evaluated. Potential applications of modified maltodextrins are discussed. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 80: 1120–1129, 2001
ISSN:0021-8995
1097-4628
DOI:10.1002/app.1195