Tags

Type your tag names separated by a space and hit enter

PLLA-grafted cellulose nanocrystals: Role of the CNC content and grafting on the PLA bionanocomposite film properties.
Carbohydr Polym. 2016 May 20; 142:105-13.CP

Abstract

Cellulose nanocrystals (CNC), extracted from microcrystalline cellulose by acid hydrolysis, were grafted by ring opening polymerization of L-Lactide initiated from the hydroxyl groups available at their surface and two different CNC:L-lactide ratios (20:80 and 5:95) were obtained. The resulting CNC-g-PLLA nanohybrids were incorporated in poly(lactic acid) (PLA) matrix by an optimized extrusion process at two different content (1 wt.% and 3 wt.%) and obtained bionanocomposite films were characterized by thermal, mechanical, optical and morphological properties. Thermal analysis showed CNC grafted with the higher ratio of lactide play a significant role as a nucleating agent. Moreover, they contribute to a significant increase in the crystallization rate of PLA, and the best efficiency was revealed with 3 wt.% of CNC-g-PLLA. This effect was confirmed by the increased in Young's modulus, suggesting the CNC graft ratio and content contribute significantly to the good dispersion in the matrix, positively affecting the final bionanocomposite properties.

Links

Publisher Full Text (DOI)

Authors+Show Affiliations

Lizundia E
Macromolecular Chemistry Research Group (LABQUIMAC), Department of Physical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa 48940, Spain.
Fortunati E
University of Perugia, Civil and Environmental Engineering Department, UdR INSTM, Strada di Pentima 4, 05100 Terni, Italy. Electronic address: elena.fortunati@unipg.it.
Dominici F
University of Perugia, Civil and Environmental Engineering Department, UdR INSTM, Strada di Pentima 4, 05100 Terni, Italy.
Vilas JL
Macromolecular Chemistry Research Group (LABQUIMAC), Department of Physical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa 48940, Spain; Basque Center for Materials, Applications and Nanostructures (BCMaterials), Parque Tecnológico de Bizkaia, Ed. 500, Derio 48160, Spain.
León LM
Macromolecular Chemistry Research Group (LABQUIMAC), Department of Physical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa 48940, Spain; Basque Center for Materials, Applications and Nanostructures (BCMaterials), Parque Tecnológico de Bizkaia, Ed. 500, Derio 48160, Spain.
Armentano I
University of Perugia, Civil and Environmental Engineering Department, UdR INSTM, Strada di Pentima 4, 05100 Terni, Italy. Electronic address: ilaria.armentano@unipg.it.
Torre L
University of Perugia, Civil and Environmental Engineering Department, UdR INSTM, Strada di Pentima 4, 05100 Terni, Italy.
Kenny JM
University of Perugia, Civil and Environmental Engineering Department, UdR INSTM, Strada di Pentima 4, 05100 Terni, Italy.

MeSH

CelluloseCrystallizationElastic ModulusNanocompositesNanoparticlesPolyestersX-Ray Diffraction

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

26917380

Citation

Lizundia, Erlantz, et al. "PLLA-grafted Cellulose Nanocrystals: Role of the CNC Content and Grafting On the PLA Bionanocomposite Film Properties." Carbohydrate Polymers, vol. 142, 2016, pp. 105-13.
Lizundia E, Fortunati E, Dominici F, et al. PLLA-grafted cellulose nanocrystals: Role of the CNC content and grafting on the PLA bionanocomposite film properties. Carbohydr Polym. 2016;142:105-13.
Lizundia, E., Fortunati, E., Dominici, F., Vilas, J. L., León, L. M., Armentano, I., Torre, L., & Kenny, J. M. (2016). PLLA-grafted cellulose nanocrystals: Role of the CNC content and grafting on the PLA bionanocomposite film properties. Carbohydrate Polymers, 142, 105-13. https://doi.org/10.1016/j.carbpol.2016.01.041
Lizundia E, et al. PLLA-grafted Cellulose Nanocrystals: Role of the CNC Content and Grafting On the PLA Bionanocomposite Film Properties. Carbohydr Polym. 2016 May 20;142:105-13. PubMed PMID: 26917380.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - PLLA-grafted cellulose nanocrystals: Role of the CNC content and grafting on the PLA bionanocomposite film properties. AU - Lizundia,Erlantz, AU - Fortunati,Elena, AU - Dominici,Franco, AU - Vilas,José Luis, AU - León,Luis Manuel, AU - Armentano,Ilaria, AU - Torre,Luigi, AU - Kenny,Josè M, Y1 - 2016/01/21/ PY - 2015/11/17/received PY - 2016/01/14/revised PY - 2016/01/18/accepted PY - 2016/2/27/entrez PY - 2016/2/27/pubmed PY - 2016/12/15/medline KW - Cellulose nanocrystals KW - Grafting KW - Interfacial compatibility KW - Poly(lactic acid) KW - Renewable bionanocomposites SP - 105 EP - 13 JF - Carbohydrate polymers JO - Carbohydr Polym VL - 142 N2 - Cellulose nanocrystals (CNC), extracted from microcrystalline cellulose by acid hydrolysis, were grafted by ring opening polymerization of L-Lactide initiated from the hydroxyl groups available at their surface and two different CNC:L-lactide ratios (20:80 and 5:95) were obtained. The resulting CNC-g-PLLA nanohybrids were incorporated in poly(lactic acid) (PLA) matrix by an optimized extrusion process at two different content (1 wt.% and 3 wt.%) and obtained bionanocomposite films were characterized by thermal, mechanical, optical and morphological properties. Thermal analysis showed CNC grafted with the higher ratio of lactide play a significant role as a nucleating agent. Moreover, they contribute to a significant increase in the crystallization rate of PLA, and the best efficiency was revealed with 3 wt.% of CNC-g-PLLA. This effect was confirmed by the increased in Young's modulus, suggesting the CNC graft ratio and content contribute significantly to the good dispersion in the matrix, positively affecting the final bionanocomposite properties. SN - 1879-1344 UR - https://www.unboundmedicine.com/medline/citation/26917380/PLLA_grafted_cellulose_nanocrystals:_Role_of_the_CNC_content_and_grafting_on_the_PLA_bionanocomposite_film_properties_ DB - PRIME DP - Unbound Medicine ER -