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Simultaneous improvement of mechanical properties and thermal stability of bacterial polyester by cellulose nanocrystals.
Carbohydr Polym. 2012 Jul 01; 89(3):971-8.CP

Abstract

Green nanocomposites were prepared by adding well-dispersed cellulose nanocrystals (CNCs) into bacterial polyester poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) matrix. Simultaneous enhancements on the mechanical property and thermal stability of PHBV after reinforcement of CNCs were achieved. Compared to neat PHBV, a 149% improvement in tensile strength and 250% increase in Young's modulus can be obtained for the resulting nanocomposites with 10 wt.% CNCs, more importantly, the T0, T5%, Tmax and Tf increased by 51.4, 36.5, 47.1 and 52.9°C, respectively. This was due to a combination of CNCs reinforcement in the polymeric matrix, and especially the formation of strong intermolecular hydrogen bonding interactions through achieving the excellent dispersion of CNCs in the PHBV matrix via the solvent exchange procedure, as a result, the formation of six-membered ring ester during the degradation process of PHBV was clearly suppressed.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Yu HY
State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, and College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
Qin ZY
No affiliation info available
Liu YN
No affiliation info available
Chen L
No affiliation info available
Liu N
No affiliation info available
Zhou Z
No affiliation info available

MeSH

BacteriaCelluloseHydrogen BondingMaterials TestingMicroscopy, Electron, ScanningNanoparticlesPolyestersTemperatureThermogravimetry

Pub Type(s)

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

Language

eng

PubMed ID

24750888

Citation

Yu, Hou-Yong, et al. "Simultaneous Improvement of Mechanical Properties and Thermal Stability of Bacterial Polyester By Cellulose Nanocrystals." Carbohydrate Polymers, vol. 89, no. 3, 2012, pp. 971-8.
Yu HY, Qin ZY, Liu YN, et al. Simultaneous improvement of mechanical properties and thermal stability of bacterial polyester by cellulose nanocrystals. Carbohydr Polym. 2012;89(3):971-8.
Yu, H. Y., Qin, Z. Y., Liu, Y. N., Chen, L., Liu, N., & Zhou, Z. (2012). Simultaneous improvement of mechanical properties and thermal stability of bacterial polyester by cellulose nanocrystals. Carbohydrate Polymers, 89(3), 971-8. https://doi.org/10.1016/j.carbpol.2012.04.053
Yu HY, et al. Simultaneous Improvement of Mechanical Properties and Thermal Stability of Bacterial Polyester By Cellulose Nanocrystals. Carbohydr Polym. 2012 Jul 1;89(3):971-8. PubMed PMID: 24750888.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Simultaneous improvement of mechanical properties and thermal stability of bacterial polyester by cellulose nanocrystals. AU - Yu,Hou-Yong, AU - Qin,Zong-Yi, AU - Liu,Yan-Nan, AU - Chen,Long, AU - Liu,Na, AU - Zhou,Zhe, Y1 - 2012/04/30/ PY - 2012/03/09/received PY - 2012/04/11/revised PY - 2012/04/13/accepted PY - 2014/4/23/entrez PY - 2012/7/1/pubmed PY - 2015/10/16/medline SP - 971 EP - 8 JF - Carbohydrate polymers JO - Carbohydr Polym VL - 89 IS - 3 N2 - Green nanocomposites were prepared by adding well-dispersed cellulose nanocrystals (CNCs) into bacterial polyester poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) matrix. Simultaneous enhancements on the mechanical property and thermal stability of PHBV after reinforcement of CNCs were achieved. Compared to neat PHBV, a 149% improvement in tensile strength and 250% increase in Young's modulus can be obtained for the resulting nanocomposites with 10 wt.% CNCs, more importantly, the T0, T5%, Tmax and Tf increased by 51.4, 36.5, 47.1 and 52.9°C, respectively. This was due to a combination of CNCs reinforcement in the polymeric matrix, and especially the formation of strong intermolecular hydrogen bonding interactions through achieving the excellent dispersion of CNCs in the PHBV matrix via the solvent exchange procedure, as a result, the formation of six-membered ring ester during the degradation process of PHBV was clearly suppressed. SN - 1879-1344 UR - https://www.unboundmedicine.com/medline/citation/24750888/Simultaneous_improvement_of_mechanical_properties_and_thermal_stability_of_bacterial_polyester_by_cellulose_nanocrystals_ DB - PRIME DP - Unbound Medicine ER -