Cited by 73Advanced Materials and MechanicsPolymer composites and self-healingDielectric materials and actuators

Dually actuated triple shape memory polymers of cross-linked polycyclooctene-carbon nanotube/polyethylene nanocomposites

Wang, Zhenwen, Zhao, Jun, Chen, Min, Yang, Minhao, Tang, Luyang, Dang, Zhi-Min, Chen, Fenghua, Huang, Miaoming +1 more·2014·ACS Applied Materials & Interfaces

Abstract

In this work, electrically and thermally actuated triple shape memory polymers (SMPs) of chemically cross-linked polycyclooctene (PCO)-multiwalled carbon nanotube (MWCNT)/polyethylene (PE) nanocomposites with co-continuous structure and selective distribution of fillers in PCO phase are prepared. We systematically studied not only the microstructure including morphology and fillers' selective distribution in one phase of the PCO/PE blends, but also the macroscopic properties including thermal, mechanical, and electrical properties. The co-continuous window of the immiscible PCO/PE blends is found to be the volume fraction of PCO (vPCO) of ca. 40-70 vol %. The selective distribution of fillers in one phase of co-continuous blends is obtained by a masterbatch technique. The prepared triple SMP materials show pronounced triple shape memory effects (SMEs) on the dynamic mechanical thermal analysis (DMTA) and the visual observation by both thermal and electric actuations. Such polyolefin samples with well-defined microstructure, electrical actuation, and triple SMEs might have potential applications as, for example, multiple autochoke elements for engines, self-adjusting orthodontic wires, and ophthalmic devices.

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Crossref · 10.1021/am5056307

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  • Alternative methods for creating multiple, well-separated switching transitions in one system consist of laminating two SMPs with well-separated transition temperatures or developing hybrid SMPs with multiple thermal transitions.

    “Alternative methods for creating multiple, well-separated switching transitions in one system consist of laminating two SMPs which have well-separated transition temperatures [76,77] or of developing hybrid SMPs with multiple thermal transitions [78-81].”

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Authors
Wang, Z., Zhao, J., Chen, M., Yang, M., Tang, L., Dang, Z.-M., Chen, F., Huang, M., & Dong, X.
Affiliations
  • University of Science and Technology Beijing (CN)
  • Chinese Academy of Sciences (CN)
Corresponding author
  • Zhao, Jun
  • Dang, Zhi-Min
  • Dong, Xia
Venue
ACS Applied Materials & Interfaces
Published
2014-11-10
Volume
6
Issue
22
Pages
20051-20059
ISSN
  • 1944-8244 (ISSN-L)
  • 1944-8252
OpenAlex
W2054134514
Cited by
73
References
69
Citations by year
2026: 3 · 2025: 3 · 2024: 5 · 2023: 2 · 2022: 6 · 2021: 5 · 2020: 10 · 2019: 10 · 2018: 2 · 2017: 10 · 2016: 8 · 2015: 8 · 2014: 1
FWCI
9.82
Type
journal article
Language
en
Open access
closed
Locations
  • ACS Applied Materials & Interfaces (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Ministry of Science and Technology of the People's Republic of China (2014CB239500)
  • Beijing National Laboratory for Molecular Sciences
Topics
  • Physical Sciences › Engineering › Mechanical Engineering › Advanced Materials and Mechanics
  • Physical Sciences › Materials Science › Polymers and Plastics › Polymer composites and self-healing
  • Physical Sciences › Engineering › Biomedical Engineering › Dielectric materials and actuators
Keywords
shape memory polymers, multi-walled carbon nanotubes, polyethylene nanocomposites, electrical actuation, thermal actuation, triple shape memory effect
MeSH terms
Calorimetry, Differential Scanning, Electricity, Microscopy, Electron, Scanning, Polymers, Surface Properties, Temperature, Polyethylene, Cyclooctanes, Nanotubes, Carbon, Nanocomposites

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