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Structural and morphological evaluation of CNC reinforced PVA/Starch biodegradable films.
Int J Biol Macromol. 2018 Sep; 116:385-393.IJ

Abstract

Nanocomposite films containing cellulose nanocrystals (CNC), as the reinforcing phase, and poly(vinyl alcohol) (PVA)/starch (S) blend, as the matrix, were prepared by solution casting technique. For the preparation, 5, 10, 15 wt% CNC suspension were incorporated in blends containing 90 wt% PVA/10 wt% S, 75 wt% PVA/25 wt% S and 50 wt% PVA/50 wt% S. Structural evaluation was done by Fourier transform infrared spectrometry and X-ray diffraction, and the morphological aspects by atomic force microscopy. Infrared spectroscopy evidenced the presence of H-bond interactions between the PVA and S and between PVA/S blend and CNC, and also variation in the conformational rearrangement, while the X-ray diffraction showed that the crystallite size and the degree of crystallinity were strongly affected by blending of PVA with S and also by the incorporation of CNC in the nanocomposite films. The surface roughness of studied samples increased with the increasing of S and filler content.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Popescu MC
"Petru Poni" Institute of Macromolecular Chemistry, Iasi, Romania. Electronic address: cpopescu@icmpp.ro.
Dogaru BI
"Petru Poni" Institute of Macromolecular Chemistry, Iasi, Romania.
Goanta M
"Al. I. Cuza" University, Faculty of Chemistry, Iasi, Romania.
Timpu D
"Petru Poni" Institute of Macromolecular Chemistry, Iasi, Romania.

MeSH

CelluloseExcipientsMicroscopy, Atomic ForceNanocompositesNanoparticlesParticle SizePolyvinyl AlcoholSpectroscopy, Fourier Transform InfraredStarchX-Ray Diffraction

Pub Type(s)

Journal Article

Language

eng

PubMed ID

29751040

Citation

Popescu, Maria-Cristina, et al. "Structural and Morphological Evaluation of CNC Reinforced PVA/Starch Biodegradable Films." International Journal of Biological Macromolecules, vol. 116, 2018, pp. 385-393.
Popescu MC, Dogaru BI, Goanta M, et al. Structural and morphological evaluation of CNC reinforced PVA/Starch biodegradable films. Int J Biol Macromol. 2018;116:385-393.
Popescu, M. C., Dogaru, B. I., Goanta, M., & Timpu, D. (2018). Structural and morphological evaluation of CNC reinforced PVA/Starch biodegradable films. International Journal of Biological Macromolecules, 116, 385-393. https://doi.org/10.1016/j.ijbiomac.2018.05.036
Popescu MC, et al. Structural and Morphological Evaluation of CNC Reinforced PVA/Starch Biodegradable Films. Int J Biol Macromol. 2018;116:385-393. PubMed PMID: 29751040.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Structural and morphological evaluation of CNC reinforced PVA/Starch biodegradable films. AU - Popescu,Maria-Cristina, AU - Dogaru,Bianca-Ioana, AU - Goanta,Mirela, AU - Timpu,Daniel, Y1 - 2018/05/08/ PY - 2017/09/28/received PY - 2018/05/07/revised PY - 2018/05/08/accepted PY - 2018/5/12/pubmed PY - 2018/10/26/medline PY - 2018/5/12/entrez KW - Cellulose nanocrystals (CNC) KW - H-bond interaction KW - Poly(vinyl alcohol) (PVA) KW - Starch (S) KW - Surface roughness SP - 385 EP - 393 JF - International journal of biological macromolecules JO - Int J Biol Macromol VL - 116 N2 - Nanocomposite films containing cellulose nanocrystals (CNC), as the reinforcing phase, and poly(vinyl alcohol) (PVA)/starch (S) blend, as the matrix, were prepared by solution casting technique. For the preparation, 5, 10, 15 wt% CNC suspension were incorporated in blends containing 90 wt% PVA/10 wt% S, 75 wt% PVA/25 wt% S and 50 wt% PVA/50 wt% S. Structural evaluation was done by Fourier transform infrared spectrometry and X-ray diffraction, and the morphological aspects by atomic force microscopy. Infrared spectroscopy evidenced the presence of H-bond interactions between the PVA and S and between PVA/S blend and CNC, and also variation in the conformational rearrangement, while the X-ray diffraction showed that the crystallite size and the degree of crystallinity were strongly affected by blending of PVA with S and also by the incorporation of CNC in the nanocomposite films. The surface roughness of studied samples increased with the increasing of S and filler content. SN - 1879-0003 UR - https://www.unboundmedicine.com/medline/citation/29751040/Structural_and_morphological_evaluation_of_CNC_reinforced_PVA/Starch_biodegradable_films_ DB - PRIME DP - Unbound Medicine ER -