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pp 1–8 | Cite as

Effect of P[MPEGMA-IL] on morphological evolution and conductivity behavior of PLA/PCL blends

  • Ping Wang
  • Yiyang Zhou
  • Pei XuEmail author
  • Yunsheng Ding
Original Paper
  • 12 Downloads

Abstract

Dielectric relaxation spectroscopy (DRS) was used to investigate the effect of morphological evolution on conductivity behavior of PLA/PCL blends containing P[MPEGMA-IL]. The morphology of blends changes from sea-island morphology into co-continuous morphology with increasing P[MPEGMA-IL] content. P[MEPGMA-IL] could mainly localize in PCL domains and expand to the interface layer between the PLA and PCL phase because of the low viscosity of PCL phase and the high affinity of MEPGMA groups for both polymer phases. The dielectric results were discussed in terms of α relaxation that corresponds to normal and segmental mode movement, interfacial polarization that corresponds to interfacial aggregation of charge carriers, and ac conductivity that originates from conductive network of mobile charge carriers. Co-continuous morphology and high ions concentration lead to the enhancement of segment movement and ion conductive channel in PCL phase, which correspond to high conductivity and low activation energy of PLA/PCL/8P[MEGMA-IL] blend.

Keywords

Blend Ionic liquid Morphological evolution Dielectric properties 

Notes

Funding information

This research was supported by the National Natural Science Foundation of China (51603060) and the Fundamental Research Funds for the Central Universities (JD2016JGPY0001).

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Ping Wang
    • 1
    • 2
  • Yiyang Zhou
    • 1
  • Pei Xu
    • 1
    Email author
  • Yunsheng Ding
    • 1
  1. 1.Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, and Anhui Key Laboratory of Advanced Functional Materials and DevicesHefei University of TechnologyHefeiChina
  2. 2.School of Materials and Chemical EngineeringAnhui Jianzhu UniversityHefeiChina

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