Spectroscopic Studies of Poly(ε-Caprolactone)/Sodium Montmorillonite Nanocomposites

• Authors: J. Krzaczkowska , Z. Fojud , M. Kozak , S. Jurga
• Languages of publication: EN

Abstracts

EN

Polymer-layered silicate nanocomposites belong to a new class of hybrid materials consisting of organic-synthetic polymer matrix and inorganic filler-layered structure clay minerals. The paper presents the results of FTIR, NMR, and SAXS studies of poly(ε-caprolactone)/sodium montmorillonite nanocomposites. We observed a correlation between the concentration of poly(ε-caprolactone) in nanocomposite samples and structural changes both of the clay mineral and the intercalated polymer. Stiffening of the clay structure appears as a result of poly(ε-caprolactone) intercalation into a clay structure. ^{27}Al NMR studies indicated in nanocomposites two non-equivalent sites of aluminium ions, i.e. in octahedral and tetrahedral coordination, whereas in the montmorillonite clay structure the aluminium ions are located in the interlayer space too. We found also that the temperatures of structural changes and softening process of poly(ε-caprolactone) chains in the nanocomposites depend on the concentration of poly(ε-caprolactone).

Keywords

EN

91.60.-x; 71.20.Tx; 78.30.Jw; 36.20.-r; 33.25.+k; 61.10.-i

Discipline

• 71.20.Tx: Fullerenes and related materials; intercalation compounds
• 91.60.-x: Physical properties of rocks and minerals(for rheological properties of geological materials, see 83.80.Nb)
• 78.30.Jw: Organic compounds, polymers
• 36.20.-r: Macromolecules and polymer molecules
• 33.25.+k: Nuclear resonance and relaxation(see also 76.60.-k Nuclear magnetic resonance and relaxation in condensed matter; 82.56.-b Nuclear magnetic resonance in physical chemistry and chemical physics; 87.80.Lg Magnetic and paramagnetic resonance in biological physics)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2005
• Volume: 108
• Issue: 1
• Pages: 187-196

Dates

published

2005-07

received

2005-04-24

Contributors

author

J. Krzaczkowska

• Department of Macromolecular Physics, Adam Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland

author

Z. Fojud

• Department of Macromolecular Physics, Adam Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland

author

M. Kozak

• Department of Macromolecular Physics, Adam Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland

author

S. Jurga

• Department of Macromolecular Physics, Adam Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland

References

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Identifiers

DOI

10.12693/APhysPolA.108.187