Characterization of nanocomposite laminates fabricated from aqueous dispersion of polyvinylpyrrolidone and l-leucine amino acid modified-montmorillonite
This study presents a favorable, simple, safe, fast, and facile approach for the synthesis of potentially ecofriendly biodegradable polymer nanocomposites (NC)s with amino acid modified-montmorillonite (AA-MMT). At first, positively charged chiral amino acid l -leucine was incorporated into the unmo...
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Published in | Polymer bulletin (Berlin, Germany) Vol. 73; no. 10; pp. 2677 - 2688 |
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Main Authors | , |
Format | Journal Article |
Language | English |
Published |
Berlin/Heidelberg
Springer Berlin Heidelberg
01.10.2016
Springer Nature B.V |
Subjects | |
Online Access | Get full text |
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Summary: | This study presents a favorable, simple, safe, fast, and facile approach for the synthesis of potentially ecofriendly biodegradable polymer nanocomposites (NC)s with amino acid modified-montmorillonite (AA-MMT). At first, positively charged chiral amino acid
l
-leucine was incorporated into the unmodified Cloisite-Na
+
montmorillonite (MMT) for organo-modification of MMT by cation-exchange method. Fourier transform infrared spectroscopy (FT-IR) showed the presence of the organic segment in the modified clay product. Then the dispersion characteristics of AA-MMT in the aforementioned NCs were determined based on polyvinylpyrrolidone (PVP). The obtained NCs were characterized by different analytical tools including FT-IR, powder X-ray diffraction (XRD), thermogravimetric analysis (TGA), transmission electron microscopy (TEM), and field emission scanning electron microscopy (FE-SEM). The XRD patterns, FE-SEM, and TEM results proposed that the AA-MMT platelets were intercalated with PVP during the process. As evidenced by TGA analysis of the obtained NCs, heat stability was slightly improved as compared with the pure PVP. |
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ISSN: | 0170-0839 1436-2449 |
DOI: | 10.1007/s00289-016-1614-6 |