Cited by 49Block Copolymer Self-AssemblyAdvanced Polymer Synthesis and CharacterizationPolymer crystallization and properties

High Temperature Thermoplastic Elastomers Synthesized by Living Anionic Polymerization in Hydrocarbon Solvent at Room Temperature

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Wang, Weiyu, Schlegel, Ralf, White, Benjamin T., Williams, Katherine, Voyloy, Dimitry, Steren, Carlos A., Goodwin, Andrew, Coughlin, E. Bryan +5 more·2016·Macromolecules

Abstract

We present the synthesis and characterization of a new class of high temperature thermoplastic elastomers composed of polybenzofulvene–polyisoprene–polybenzofulvene (FIF) triblock copolymers. All copolymers were prepared by living anionic polymerization in benzene at room temperature. Homopolymerization and effects of additives on the glass transition temperature ( T g ) of polybenzofulvene (PBF) were also investigated. Among all triblock copolymers studied, FIF with 14 vol % of PBF exhibited a maximum stress of 14.3 ± 1.3 MPa and strain at break of 1390 ± 66% from tensile tests. The stress–strain curves of FIF-10 and 14 were analyzed by a statistical molecular approach using a nonaffine tube model to estimate the thermoplastic elastomer behavior. Dynamic mechanical analysis showed that the softening temperature of PBF in FIF was 145 °C, much higher than that of thermoplastic elastomers with polystyrene hard blocks. Microphase separation of FIF triblock copolymers was observed by small-angle X-ray scattering, even though long-range order was not achieved under the annealing conditions employed. In addition, the microphase separation of the resulting triblock copolymers was examined by atomic force microscopy.

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Crossref · 10.1021/acs.macromol.5b02642

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  • The softening temperature of PBF in FIF is much higher than that of thermoplastic elastomers with PS hard blocks.

    “Dynamic mechanical analysis showed that the softening temperature of PBF in FIF was 145 °C, which is much higher than that of thermoplastic elastomers with PS hard blocks (Figure 15).”

    From Block Copolymers: Synthesis, Self-Assembly, and Applications (2017) · cites this paper as [92]

  • The softening temperature of PBF in FIF was 145 °C.

    “Dynamic mechanical analysis showed that the softening temperature of PBF in FIF was 145 °C, which is much higher than that of thermoplastic elastomers with PS hard blocks (Figure 15).”

    From Block Copolymers: Synthesis, Self-Assembly, and Applications (2017) · cites this paper as [92]

  • FIF with 14 vol % of PBF exhibited a maximum stress of 14.3 ± 1.3 MPa from tensile tests.

    “FIF with 14 vol % of PBF exhibited a maximum stress of 14.3 ± 1.3 MPa and strain at break of 1390 ± 66% from tensile tests [92].”

    From Block Copolymers: Synthesis, Self-Assembly, and Applications (2017) · cites this paper as [92]

  • FIF with 14 vol % of PBF exhibited a strain at break of 1390 ± 66% from tensile tests.

    “FIF with 14 vol % of PBF exhibited a maximum stress of 14.3 ± 1.3 MPa and strain at break of 1390 ± 66% from tensile tests [92].”

    From Block Copolymers: Synthesis, Self-Assembly, and Applications (2017) · cites this paper as [92]

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Authors
Wang, W., Schlegel, R., White, B. T., Williams, K., Voyloy, D., Steren, C. A., Goodwin, A., Coughlin, E. B., Gido, S., Beiner, M., Hong, K., Kang, N.-G., & Mays, J.
Affiliations
  • University of Tennessee at Knoxville (US)
  • Fraunhofer Institute for Microstructure of Materials and Systems (DE)
  • University of Massachusetts Amherst (US)
  • Oak Ridge National Laboratory (US)
Corresponding author
  • Kang, Nam-Goo
  • Mays, Jimmy
Venue
Macromolecules
Published
2016-03-30
Volume
49
Issue
7
Pages
2646-2655
ISSN
  • 0024-9297 (ISSN-L)
  • 1520-5835
OpenAlex
W2327074625
Cited by
49
References
44
Citations by year
2025: 3 · 2024: 8 · 2023: 1 · 2022: 3 · 2021: 8 · 2020: 4 · 2019: 7 · 2018: 4 · 2017: 10 · 2016: 1
FWCI
3.27
Type
journal article
Language
en
Open access
Locations
  • Macromolecules (publishedVersion)
  • OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (submittedVersion)
  • Fraunhofer-Publica (Fraunhofer-Gesellschaft) (submittedVersion)
Funders
  • Division of Industrial Innovation and Partnerships (1237787)
  • Army Research Office (W911-NF-11-0417)
  • Bill and Melinda Gates Foundation
Topics
  • Physical Sciences › Materials Science › Materials Chemistry › Block Copolymer Self-Assembly
  • Physical Sciences › Chemistry › Organic Chemistry › Advanced Polymer Synthesis and Characterization
  • Physical Sciences › Materials Science › Polymers and Plastics › Polymer crystallization and properties
Keywords
thermoplastic elastomers, polyisoprene, triblock copolymers, living anionic polymerization, room-temperature polymerization, hydrocarbon solvents, glass transition temperature, microphase separation, tensile properties, softening point, long-range order

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