Simultaneous Improvements of Thermal Stability and Mechanical Properties of Poly(propylene carbonate) via Incorporation of Environmental-friendly Polydopamine

Yu-han Li; Mi Zhou; Cheng-zhen Geng; Feng Chen; Qiang Fu

doi:10.1007/s10118-014-1518-6

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Simultaneous Improvements of Thermal Stability and Mechanical Properties of Poly(propylene carbonate) via Incorporation of Environmental-friendly Polydopamine

Updated：2021-06-21

- Simultaneous Improvements of Thermal Stability and Mechanical Properties of Poly(propylene carbonate) via Incorporation of Environmental-friendly Polydopamine
- Simultaneous Improvements of Thermal Stability and Mechanical Properties of Poly(propylene carbonate) via Incorporation of Environmental-friendly Polydopamine
- Chinese Journal of Polymer Science 2014年32卷第12期页码：1724-1736
- Affiliations：
  
  College of Polymer Science and Engineering, State Key Laboratory of Polymer MaterialsEngineering, Sichuan University, Chengdu 610065, China
- Author bio：
  
  **Feng Chen (陈枫), E-mail: fengchen@scu.edu.cn
  Qiang Fu (傅强), E-mail: qiangfu@scu.edu.cn
- Funds：
  
  National Natural Science Foundation of China(51173112;21274095)
- DOI：10.1007/s10118-014-1518-6
  中图分类号：
- 收稿：2014-04-15，
  
  修回：2014-05-19，
  
  录用：2014-05-28，
  
  纸质出版：2014-12
- Accepted：
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Yu-han Li, Mi Zhou, Cheng-zhen Geng, 等. Simultaneous Improvements of Thermal Stability and Mechanical Properties of Poly(propylene carbonate) via Incorporation of Environmental-friendly Polydopamine[J]. Chinese Journal of Polymer Science, 2014,32(12):1724-1736.

Yu-han Li, Mi Zhou, Cheng-zhen Geng, et al. Simultaneous Improvements of Thermal Stability and Mechanical Properties of Poly(propylene carbonate) via Incorporation of Environmental-friendly Polydopamine[J]. Chinese Journal of Polymer Science, 2014, 32(12): 1724-1736. DOI: 10.1007/s10118-014-1518-6.
Yu-han Li, Mi Zhou, Cheng-zhen Geng, 等. Simultaneous Improvements of Thermal Stability and Mechanical Properties of Poly(propylene carbonate) via Incorporation of Environmental-friendly Polydopamine[J]. Chinese Journal of Polymer Science, 2014,32(12):1724-1736. DOI： 10.1007/s10118-014-1518-6.

Yu-han Li, Mi Zhou, Cheng-zhen Geng, et al. Simultaneous Improvements of Thermal Stability and Mechanical Properties of Poly(propylene carbonate) via Incorporation of Environmental-friendly Polydopamine[J]. Chinese Journal of Polymer Science, 2014, 32(12): 1724-1736. DOI: 10.1007/s10118-014-1518-6. DOI：

摘要

Abstract

Inspired by the photoprotection

radical scavenging of melanin together with versatile adhesive ability of mussel proteins

polydopamine (PDA) nanoparticles were successfully prepared and incorporated into environmentally friendly polymer

poly(propylene carbonate) (PPC)

via

solvent blending. The prepared composites exhibited excellent thermal stability in air and nitrogen atmosphere and extraordinary mechanical properties. The composites displayed eminent increase of temperature at 5% weight loss (

) by 30-100 K with 0.3 wt%-2.0 wt% loadings

meanwhile

the tensile strength and Young's modulus were significantly improved from 11.5 MPa and 553.7 MPa to 40.5 MPa and 2411.2 MPa

respectively. The kinetic calculation indicated that improvement of

is presumably derived from suppressing chain-end unzipping. The glass transition temperature (

) of the PPC/PDA composites increased by 8-10 K. This is probably due to hydrogen bonding interaction since the abundant proton donors along PDA chains would interact with proton acceptors like C=O and C—O—C in PPC which would cause restriction of segmental motion of PPC chains.

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