Li, Lujuan and Xu, Xiaodong and Wang, Bingtao and Song, Pingan 
ORCID: https://orcid.org/0000-0003-1082-652X and Cao, Qianqian and Yang, Yang and Xu, Zhiguang and Wang, Hao
(2021)
Structure, chain dynamics and mechanical properties of poly(vinyl alcohol)/phytic acid composites.
Composites Communications, 28:100970.
pp. 1-6.
ISSN 2452-2139
Abstract
The global micro- and nano-plastic issue has greatly triggered the development of advanced biodegradable polymeric materials. The creation of biodegradable polyvinyl alcohol (PVA)/phytic acid (PhyAc) composite represents a sustainable solution. However, it remains unclear how PhyAc molecules affect intermolecular hydrogen-bonding (H-bonding), structure, chain dynamics and mechanical properties of PVA so far. Herein, we explore structure, chain dynamics and mechanical properties of PVA/PhyAc composite by combining molecular dynamics simulation and experimental. The number of PVA-PhyAc H-bonds per PhyAc molecule and that of total H-bonds show different PhyAc content dependence. The PVA composite with 1.9 wt% of PhyAc shows a lower free volume and a smaller diffusion coefficient. Meanwhile, the glass transition temperature (Tg) of PVA reaches the maximum value at ca. 1.25 wt% of PhyAc. Interestingly, 10 wt% PhyAc endows PVA with the highest tensile strength in addition to a good antibacterial capability. This work reveals how small molecules affect structure and mechanical properties of polymers and contributes to expanding practical applications of PVA/PhyAc in industry.
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| Item Type: | Article (Commonwealth Reporting Category C) |
|---|---|
| Refereed: | Yes |
| Item Status: | Live Archive |
| Faculty/School / Institute/Centre: | Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials (1 Jan 2017 -) |
| Faculty/School / Institute/Centre: | Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials (1 Jan 2017 -) |
| Date Deposited: | 07 Mar 2022 23:06 |
| Last Modified: | 26 Mar 2022 05:55 |
| Uncontrolled Keywords: | Chain dynamics; Mechanical property; Phytic acid; Poly(vinyl alcohol) |
| Fields of Research (2008): | 09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials |
| Fields of Research (2020): | 40 ENGINEERING > 4016 Materials engineering > 401602 Composite and hybrid materials |
| Socio-Economic Objectives (2008): | E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering |
| Socio-Economic Objectives (2020): | 28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280110 Expanding knowledge in engineering |
| Identification Number or DOI: | https://doi.org/10.1016/j.coco.2021.100970 |
| URI: | http://eprints.usq.edu.au/id/eprint/46333 |
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