Reactive TiO<sub>2</sub> Nanoparticles Compatibilized PLLA/PBSU Blends: Fully Biodegradable Polymer Composites with Improved Physical, Antibacterial and Degradable Properties

Xiao-Ying Gu; Ling-Min Hu; Zhi-Ang Fu; Heng-Ti Wang; Yong-Jin Li

doi:10.1007/s10118-021-2632-x

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Reactive TiO₂ Nanoparticles Compatibilized PLLA/PBSU Blends: Fully Biodegradable Polymer Composites with Improved Physical, Antibacterial and Degradable Properties

ARTICLE | Updated：2021-09-06

- Reactive TiO₂ Nanoparticles Compatibilized PLLA/PBSU Blends: Fully Biodegradable Polymer Composites with Improved Physical, Antibacterial and Degradable Properties
- Reactive TiO₂ Nanoparticles Compatibilized PLLA/PBSU Blends: Fully Biodegradable Polymer Composites with Improved Physical, Antibacterial and Degradable Properties
- Chinese Journal of Polymer Science 2021年39卷第12期页码：1645-1656
- Affiliations：
  
  College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China
- Author bio：
  
  yongjin-li@hznu.edu.cn
- Funds：
  
  This study was financially supported by the Major Project of Natural Science Foundation of Zhejiang Province of China (No. LD19E030001) and the National Nature Science Foundation of China (No. 51903071).
- DOI：10.1007/s10118-021-2632-x
  中图分类号：
- 收稿：2021-06-07，
  
  修回：2021-7-10，
  
  录用：2021-7-15，
  
  网络首发：2021-09-06，
  
  纸质出版：2021-10-18
- Accepted：
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Gu, X. Y.; Hu, L. M.; Fu, Z. A.; Wang, H. T.; Li, Y. J. Reactive TiO₂ nanoparticles compatibilized PLLA/PBSU blends: fully biodegradable polymer composites with improved physical, antibacterial and degradable properties. Chinese J. Polym. Sci. 2021, 39, 1645–1656 DOI: 10.1007/s10118-021-2632-x.

Xiao-Ying Gu, Ling-Min Hu, Zhi-Ang Fu, et al. Reactive TiO₂ Nanoparticles Compatibilized PLLA/PBSU Blends: Fully Biodegradable Polymer Composites with Improved Physical, Antibacterial and Degradable Properties[J]. Chinese Journal of Polymer Science, 2021, 39(12): 1645-1656. DOI: 10.1007/s10118-021-2632-x.
Gu, X. Y.; Hu, L. M.; Fu, Z. A.; Wang, H. T.; Li, Y. J. Reactive TiO₂ nanoparticles compatibilized PLLA/PBSU blends: fully biodegradable polymer composites with improved physical, antibacterial and degradable properties. Chinese J. Polym. Sci. 2021, 39, 1645–1656 DOI: 10.1007/s10118-021-2632-x. DOI：

Xiao-Ying Gu, Ling-Min Hu, Zhi-Ang Fu, et al. Reactive TiO₂ Nanoparticles Compatibilized PLLA/PBSU Blends: Fully Biodegradable Polymer Composites with Improved Physical, Antibacterial and Degradable Properties[J]. Chinese Journal of Polymer Science, 2021, 39(12): 1645-1656. DOI: 10.1007/s10118-021-2632-x. DOI：

摘要

Abstract

The fully biodegradable polymer blends remain challenges for the application due to their undesirable comprehensive performance. Herein

remarkable combination of superior mechanical performance

bacterial resistance

and controllable degradability is realized in the biodegradable poly(L-lactide)/poly(butylene succinate) (PLLA/PBSU) blends by stabilizing the epoxide group modified titanium dioxide nanoparticles (m-TiO

) at the PLLA-PBSU interface through reactive blending. The m-TiO

can not only act as interfacial compatibilizer but also play the role of photodegradation catalyst: on the one hand

binary grafted nanoparticles were

in situ

formed and stabilized at the interface to enhance the compatibility between polymer phases. As a consequence

the mechanical properties of the blend

such as the elongation at break

notched impact strength and tensile yield strength

were simultaneously improved. On the other hand

antibacterial and photocatalytic degradation performance of the composite films was synergistically improved. It was found that the m-TiO

incorporated PLLA/PBSU films exhibit more effective antibacterial activity than the neat PLLA/PBSU films. Moreover

the analysis of photodegradable properties revealed that that m-TiO

nanoparticles could act as a photocatalyst to accelerate the photodegradation rate of polymers. This study paves a new strategy to fabricate advanced PLLA/PBSU blend materials with excellent mechanical performance

antibacterial and photocatalytic degradation performance

which enables the potential utilization of fully degradable polymers.

关键词

Keywords

references

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Reactive TiO2 Nanoparticles Compatibilized PLLA/PBSU Blends: Fully Biodegradable Polymer Composites with Improved Physical, Antibacterial and Degradable Properties

Reactive TiO2 Nanoparticles Compatibilized PLLA/PBSU Blends: Fully Biodegradable Polymer Composites with Improved Physical, Antibacterial and Degradable Properties

DOI：10.1007/s10118-021-2632-x

摘要

Abstract

关键词

Keywords

references

Reactive TiO₂ Nanoparticles Compatibilized PLLA/PBSU Blends: Fully Biodegradable Polymer Composites with Improved Physical, Antibacterial and Degradable Properties

Reactive TiO₂ Nanoparticles Compatibilized PLLA/PBSU Blends: Fully Biodegradable Polymer Composites with Improved Physical, Antibacterial and Degradable Properties