A naturally tailored small molecule for the preparation of ethyl cellulose supramolecular composite film

Biobased lipoic acid (LA) can be used as a plasticizer and combine with ethyl cellulose (EC) to form ethyl cellulose supramolecular composite films. The morphology, hydrophilic performance, thermal stability and mechanical properties of the composite films were investigated. The introduction of LA c...

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Bibliographic Details
Published in:Cellulose (London) 2021, Vol.28 (1), p.289-300
Main Authors: Lin, Yamei, Asante, Frimpong Obed, Xu, Xiao, Li, Shouhai, Ding, Haiyang, Xu, Lina, Yang, Xiaohua, Xia, Jianling, Li, Mei
Format: Article
Language:English
Subjects:
Bioorganic Chemistry
Bonding strength
Cellulose
Cellulosic resins
Ceramics
Chemistry
Chemistry and Materials Science
Composites
Elongation
Ethyl cellulose
Glass
Hydrogen bonding
Hydrophobicity
Lipoic acid
Mechanical properties
Molecular dynamics
Morphology
Natural Materials
Organic Chemistry
Original Research
Physical Chemistry
Plasticizers
Polymer Sciences
Sustainable Development
Thermal stability
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Summary:Biobased lipoic acid (LA) can be used as a plasticizer and combine with ethyl cellulose (EC) to form ethyl cellulose supramolecular composite films. The morphology, hydrophilic performance, thermal stability and mechanical properties of the composite films were investigated. The introduction of LA can significantly improve the flexibility and processability of ethyl cellulose films because LA can weaken both hydrogen bonding and hydrophobic interaction in EC chains. The elongation at break of EC composite films can be increased by 5.5~11.1 times when the LA content is 20~50%. In addition, comparative experiments and molecular dynamic simulations were performed to explain the superiority of LA as a plasticizer for EC films. Graphic abstract
ISSN:0969-0239
1572-882X
DOI:10.1007/s10570-020-03532-9