Bioinspired strategy for tuning thermal stability of PVA via hydrogen-bond crosslink
Article
Article Title | Bioinspired strategy for tuning thermal stability of PVA via hydrogen-bond crosslink |
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ERA Journal ID | 4884 |
Article Category | Article |
Authors | Song, Pingan (Author), Xu, Zhiguang (Author), Lu, Yuan (Author) and Guo, Qipeng (Author) |
Journal Title | Composites Science and Technology |
Journal Citation | 118, pp. 16-22 |
Number of Pages | 7 |
Year | 2015 |
Publisher | Elsevier |
Place of Publication | United Kingdom |
ISSN | 0266-3538 |
1879-1050 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.compscitech.2015.08.006 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S0266353815300543 |
Abstract | Although many approaches have been employed to enhance thermal stability of PVA, developing a facile and effective strategy remains highly attractive. Herein, we demonstrate a highly effective approach to strikingly improve thermal stability of PVA by selecting the types of multiamines molecules to tune the hydrogen-bond crosslink density. Results show that only adding 0.5 wt% of 2,4,5,6-tetraaminopyrimidine can make the initial degradation temperature (Ti) and maximum degradation temperature (Tmax) of PVA increase by ∼55 °C and 98 °C due to the formation of 3D physically H-bond crosslinked network, resulting in superior thermal stability property to those of PVA nanocomposites. Moreover, thermal stability strongly depends on the H-bond crosslink density, and Ti and Tmax basically obey the linear hydrogen-bond relations despite some deviations. This work opens up a novel biological methodology for creating thermally stable polymeric materials. |
Keywords | Polymers; Thermal properties; Infrared (IR) spectroscopy |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 401609. Polymers and plastics |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Zhejiang A & F University, China |
Deakin University | |
Oak Ridge National Laboratory, United States | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q4519/bioinspired-strategy-for-tuning-thermal-stability-of-pva-via-hydrogen-bond-crosslink
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