A naturally tailored small molecule for the preparation of ethyl cellulose supramolecular composite film
- PDF / 1,484,836 Bytes
- 12 Pages / 547.087 x 737.008 pts Page_size
- 28 Downloads / 194 Views
(0123456789().,-volV) ( 01234567 89().,-volV)
ORIGINAL RESEARCH
A naturally tailored small molecule for the preparation of ethyl cellulose supramolecular composite film Yamei Lin . Frimpong Obed Asante . Xiao Xu . Shouhai Li . Haiyang Ding . Lina Xu . Xiaohua Yang . Jianling Xia . Mei Li
Received: 11 June 2020 / Accepted: 14 October 2020 Ó Springer Nature B.V. 2020
Abstract 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.
Y. Lin S. Li (&) H. Ding L. Xu X. Yang J. Xia M. Li (&) Institute of Chemical Industry of Forestry Products, Chinese Academy of Forestry, Nanjing 210042, Jiangsu Province, China e-mail: [email protected]; [email protected]
X. Xu S. Li H. Ding L. Xu X. Yang J. Xia M. Li National Engineering Laboratory for Biomass Chemical Utilization, Nanjing 210042, Jiangsu Province, China
M. Li e-mail: [email protected]; [email protected] Y. Lin School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, Jiangsu Province, China F. O. Asante School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu Province, China
S. Li H. Ding L. Xu X. Yang J. Xia M. Li Key Laboratory of Biomass Energy and Material, Nanjing 210042, Jiangsu Province, China S. Li H. Ding L. Xu X. Yang J. Xia M. Li Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing 210042, Jiangsu Province, China S. Li H. Ding L. Xu X. Yang J. Xia M. Li Key Laboratory of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, Nanjing 210042, Jiangsu Province, China
123
Cellulose
Graphic abstract
Keywords Ethyl cellulose Lipoic acid Supramolecular composite films Mechanical properties Molecular dynamic simulations
Introduction Supramolecular chemistry, which was firstly proposed by Donald J. cram, Jean-Marie Lehn and Charles J. Pedersen, and recognized with the 1987 Nobel Prize. Since then, supramolecular systems have been widely explored in many areas, such as molecular machines and switches (Song et al. 2015; Goujon et al. 2017), well-defined networks (Wang et al. 2020; Nigmatullin et al. 2019) and self-assembling macrostructures (An et al. 2017; Ghosh et al. 2019). The construction of supramolecular systems mainly depends on noncovalent bond, includin
Data Loading...
