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Journal of Polymers and the Environment

, Volume 26, Issue 11, pp 4201–4210 | Cite as

A Novel Bio-based Polyaspartic Acid Copolymer: Synthesis, Structure and Performance of Degradation

  • Xiao-mei Wang
  • Hao-hao Ren
  • Yong-gang Yan
  • Mi-zhi Ji
Original Paper
  • 91 Downloads

Abstract

A novel bio-based polyaspartic acid copolymer, as a multifunctional polymer was fabricated via in-site melting polymerization method using l-aspartic acid, γ-aminobutyric acid, l-phenylalanine and l-alanine as raw materials. The synthetic conditions were studied in detail, and the structure and degradation assays of these copolymers were investigated by FT-IR, XRD, weight loss rate, pH values, intrinsic viscosity and SEM. According to the results, all of the copolymers were found to have similar structure and excellent degradability. Additionally, the optimized copolymer C7 [l-aspartic acid (0.45 mol), γ-aminobutyric acid (0.35 mol), l-phenylalanine (0.05 mol) and l-alanine (0.15 mol)] exhibited the highest weight loss rate among all the copolymers. The weight loss rates on the 28th day in aqueous medium, phosphate buffered saline solution, 5.0 wt% trypsin solution and soil culture medium reached up to 44.74 wt%, 99.75 wt%, 90.67 wt% and 83.58 wt%, respectively. And the appropriate introduction of bio-based amino acids could control the degradation of polyaspartic acid distinctly. All of these results indicated that the bio-based polyaspartic acid copolymer could be used for reference as a good understanding of description the degradation of other environmentally friendly bio-based polymers.

Keywords

l-aspartic acid Bio-based Weight loss rate Copolymer Degradation 

Notes

Acknowledgements

This work has been funded by the National Natural Science Foundation of China (No. 51773123).

Compliance with Ethical Standards

Conflict of interest

The authors declare no competing financial interest in this work.

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • Xiao-mei Wang
    • 1
  • Hao-hao Ren
    • 2
  • Yong-gang Yan
    • 1
  • Mi-zhi Ji
    • 1
  1. 1.College of Physical Science and TechnologySichuan UniversityChengduChina
  2. 2.Sichuan National Nano Technology Co., LtdChengduChina

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