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Cellulose nanocrystal driven microphase separated nanocomposites: Enhanced mechanical performance and nanostructured morphology.
Int J Biol Macromol. 2019 Jun 01; 130:685-694.IJ

Abstract

The interest in the modification of cellulose nanocrystals (CNCs) lies in the potential to homogenously disperse CNCs in hydrophobic polymer matrices and to promote interfacial adhesion. In this work, poly(methyl methacrylate) (PMMA) and poly(butyl acrylate) (PBA) were grafted onto CNCs, thereby imparting their hydrophobic traits. The successful grafting modification led to the increased thermal stability of modified CNCs (MCNCs), and the hydrophobic surface modification was integrated with crystalline structure and morphology of CNCs. The nanocomposites with 7 wt% MCNCs/PBA-co-PMMA had an increase in Young's modulus of >25-fold and in tensile strength at about 3 times compared to these of neat PBA-co-PMMA copolymer. In addition, a micro-phase separated morphology (PBA soft domains, and PMMA and CNC hard domains) of MCNCs/PBA-co-PMMA nanocomposites was observed. The large increase in the storage moduli (glass transition temperatures) and organized morphology of MCNCs/PBA-co-PMMA nanocomposites also elucidated the relationship between mechanical properties and micro-phase separated morphology. Therefore, the MCNCs are effective reinforcing agents for the PBA-co-PMMA thermoplastic elastomers, opening up opportunities for their wide-spread applications in polymer composites.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Zhang J
School of Renewable Natural Resources, Louisiana State University Agricultural Center, Baton Rouge, LA 70803, USA.
Zhang X
Key Biomass Energy Laboratory of Henan Province, Zhengzhou 450008, Henan, China.
Li MC
School of Renewable Natural Resources, Louisiana State University Agricultural Center, Baton Rouge, LA 70803, USA.
Dong J
School of Renewable Natural Resources, Louisiana State University Agricultural Center, Baton Rouge, LA 70803, USA.
Lee S
Department of Forest Products, National Institute of Forest Research, Seoul 130-712, Republic of Korea.
Cheng HN
US Department of Agriculture, Southern Regional Research Center, Agricultural Research Service, 1100 Robert E Lee Blvd, New Orleans, LA 70124, United States.
Lei T
Key Biomass Energy Laboratory of Henan Province, Zhengzhou 450008, Henan, China. Electronic address: leitingzhou@163.com.
Wu Q
School of Renewable Natural Resources, Louisiana State University Agricultural Center, Baton Rouge, LA 70803, USA. Electronic address: wuqing@lsu.edu.

MeSH

CelluloseMechanical PhenomenaMolecular StructureNanocompositesNanoparticlesThermodynamics

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30826401

Citation

Zhang, Jinlong, et al. "Cellulose Nanocrystal Driven Microphase Separated Nanocomposites: Enhanced Mechanical Performance and Nanostructured Morphology." International Journal of Biological Macromolecules, vol. 130, 2019, pp. 685-694.
Zhang J, Zhang X, Li MC, et al. Cellulose nanocrystal driven microphase separated nanocomposites: Enhanced mechanical performance and nanostructured morphology. Int J Biol Macromol. 2019;130:685-694.
Zhang, J., Zhang, X., Li, M. C., Dong, J., Lee, S., Cheng, H. N., Lei, T., & Wu, Q. (2019). Cellulose nanocrystal driven microphase separated nanocomposites: Enhanced mechanical performance and nanostructured morphology. International Journal of Biological Macromolecules, 130, 685-694. https://doi.org/10.1016/j.ijbiomac.2019.02.159
Zhang J, et al. Cellulose Nanocrystal Driven Microphase Separated Nanocomposites: Enhanced Mechanical Performance and Nanostructured Morphology. Int J Biol Macromol. 2019 Jun 1;130:685-694. PubMed PMID: 30826401.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Cellulose nanocrystal driven microphase separated nanocomposites: Enhanced mechanical performance and nanostructured morphology. AU - Zhang,Jinlong, AU - Zhang,Xiuqiang, AU - Li,Mei-Chun, AU - Dong,Ju, AU - Lee,Sunyoung, AU - Cheng,H N, AU - Lei,Tingzhou, AU - Wu,Qinglin, Y1 - 2019/02/28/ PY - 2018/06/08/received PY - 2018/08/02/revised PY - 2019/02/27/accepted PY - 2019/3/4/pubmed PY - 2019/8/6/medline PY - 2019/3/4/entrez KW - Cellulose nanocrystals KW - Mechanical properties KW - Nanocomposites SP - 685 EP - 694 JF - International journal of biological macromolecules JO - Int J Biol Macromol VL - 130 N2 - The interest in the modification of cellulose nanocrystals (CNCs) lies in the potential to homogenously disperse CNCs in hydrophobic polymer matrices and to promote interfacial adhesion. In this work, poly(methyl methacrylate) (PMMA) and poly(butyl acrylate) (PBA) were grafted onto CNCs, thereby imparting their hydrophobic traits. The successful grafting modification led to the increased thermal stability of modified CNCs (MCNCs), and the hydrophobic surface modification was integrated with crystalline structure and morphology of CNCs. The nanocomposites with 7 wt% MCNCs/PBA-co-PMMA had an increase in Young's modulus of >25-fold and in tensile strength at about 3 times compared to these of neat PBA-co-PMMA copolymer. In addition, a micro-phase separated morphology (PBA soft domains, and PMMA and CNC hard domains) of MCNCs/PBA-co-PMMA nanocomposites was observed. The large increase in the storage moduli (glass transition temperatures) and organized morphology of MCNCs/PBA-co-PMMA nanocomposites also elucidated the relationship between mechanical properties and micro-phase separated morphology. Therefore, the MCNCs are effective reinforcing agents for the PBA-co-PMMA thermoplastic elastomers, opening up opportunities for their wide-spread applications in polymer composites. SN - 1879-0003 UR - https://www.unboundmedicine.com/medline/citation/30826401/Cellulose_nanocrystal_driven_microphase_separated_nanocomposites:_Enhanced_mechanical_performance_and_nanostructured_morphology_ DB - PRIME DP - Unbound Medicine ER -