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Structural and sorption properties of bio-nanocomposite films based on κ-carrageenan and cellulose nanocrystals.
Int J Biol Macromol. 2019 Aug 15; 135:462-471.IJ

Abstract

There is an increased interest on changing the synthetic based materials to biodegradable ones, especially with natural polymers, polysaccharides or proteins. In this research we prepared bio-nanocomposite formulations with different component concentrations and investigated their structural features, with focus on the interactions, sorption properties, and how the combination between them influences these properties. By infrared spectroscopy, principal component analysis (PCA) and two-dimensional correlation spectroscopy (2DCOS) was identified that in the blending process are involved the -SO4 and C(4)-O-S groups of β-d-galactose, CO groups, (O=S=O) of carrageenan and -OH and CO groups from CNCs. The water uptake and water sorption properties decrease with increasing the CNCs content in the formulations from about 15% for κ to 10% for κC15 and from about 128% for κ to 115% for κC15, respectively. The increase of the CNCs content induced an increase of the water contact angle from 47° for κ to 90° for κC15, indicating once again the involvement of the free hydroxyl groups in the hydrogen bonded interactions.

Authors+Show Affiliations

Petru Poni Institute of Macromolecular Chemistry of the Romanian Academy, Iasi, Romania. Electronic address: cpopescu@icmpp.ro.Petru Poni Institute of Macromolecular Chemistry of the Romanian Academy, Iasi, Romania.School of Engineering and the Built Environment, Edinburgh Napier University, Edinburgh, UK.Petru Poni Institute of Macromolecular Chemistry of the Romanian Academy, Iasi, Romania.Petru Poni Institute of Macromolecular Chemistry of the Romanian Academy, Iasi, Romania.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31150669

Citation

Popescu, Maria-Cristina, et al. "Structural and Sorption Properties of Bio-nanocomposite Films Based On Κ-carrageenan and Cellulose Nanocrystals." International Journal of Biological Macromolecules, vol. 135, 2019, pp. 462-471.
Popescu MC, Dogaru BI, Sun D, et al. Structural and sorption properties of bio-nanocomposite films based on κ-carrageenan and cellulose nanocrystals. Int J Biol Macromol. 2019;135:462-471.
Popescu, M. C., Dogaru, B. I., Sun, D., Stoleru, E., & Simionescu, B. C. (2019). Structural and sorption properties of bio-nanocomposite films based on κ-carrageenan and cellulose nanocrystals. International Journal of Biological Macromolecules, 135, 462-471. https://doi.org/10.1016/j.ijbiomac.2019.05.194
Popescu MC, et al. Structural and Sorption Properties of Bio-nanocomposite Films Based On Κ-carrageenan and Cellulose Nanocrystals. Int J Biol Macromol. 2019 Aug 15;135:462-471. PubMed PMID: 31150669.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Structural and sorption properties of bio-nanocomposite films based on κ-carrageenan and cellulose nanocrystals. AU - Popescu,Maria-Cristina, AU - Dogaru,Bianca-Ioana, AU - Sun,Dongyang, AU - Stoleru,Elena, AU - Simionescu,Bogdan C, Y1 - 2019/05/28/ PY - 2019/02/06/received PY - 2019/05/17/revised PY - 2019/05/26/accepted PY - 2019/6/1/pubmed PY - 2019/12/20/medline PY - 2019/6/1/entrez KW - Cellulose nanocrystals KW - Interactions KW - Nanocomposite films KW - Sorption properties KW - κ-Carrageenan SP - 462 EP - 471 JF - International journal of biological macromolecules JO - Int J Biol Macromol VL - 135 N2 - There is an increased interest on changing the synthetic based materials to biodegradable ones, especially with natural polymers, polysaccharides or proteins. In this research we prepared bio-nanocomposite formulations with different component concentrations and investigated their structural features, with focus on the interactions, sorption properties, and how the combination between them influences these properties. By infrared spectroscopy, principal component analysis (PCA) and two-dimensional correlation spectroscopy (2DCOS) was identified that in the blending process are involved the -SO4 and C(4)-O-S groups of β-d-galactose, CO groups, (O=S=O) of carrageenan and -OH and CO groups from CNCs. The water uptake and water sorption properties decrease with increasing the CNCs content in the formulations from about 15% for κ to 10% for κC15 and from about 128% for κ to 115% for κC15, respectively. The increase of the CNCs content induced an increase of the water contact angle from 47° for κ to 90° for κC15, indicating once again the involvement of the free hydroxyl groups in the hydrogen bonded interactions. SN - 1879-0003 UR - https://www.unboundmedicine.com/medline/citation/31150669/Structural_and_sorption_properties_of_bio_nanocomposite_films_based_on_��_carrageenan_and_cellulose_nanocrystals_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0141-8130(19)30956-0 DB - PRIME DP - Unbound Medicine ER -