An Ionomeric Renewable Thermoplastic from Lignin-Reinforced Rubber
Abstract
An ionomeric, leathery thermoplastic with high mechanical strength is prepared by a new thermal processing method from a soft, melt-processable rubber. Compositions made by incorporation of equal-mass lignin, a renewable oligomeric feedstock, in an acrylonitrile-butadiene rubber often yield weak rubbers with large lignin domains (1–2 µm). The addition of zinc chloride (ZnCl2) in such a composition based on sinapyl alcohol-rich lignin during a solvent-free synthesis induces a strong interfacial crosslinking between lignin and rubber phases. This compositional modification results in finely interspersed lignin domains (<100 nm) that essentially reinforce the rubbery matrix with a 10–22 °C rise in the glassy-to-rubbery transition temperature. The ion-modified polymer blends also show improved materials properties, like a 100% increase in ultimate tensile strength and an order of magnitude rise in Young's modulus. Coarse-grained molecular dynamics (MD) simulations verify the morphology and dynamics of the ionomeric material. The computed result also confirms that the ionomers have glassy characteristics.
- Publication Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Sustainable Transportation Office. Bioenergy Technologies Office (BETO)
- OSTI Identifier:
- 1559703
- Alternate Identifier(s):
- OSTI ID: 1508878
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Macromolecular Rapid Communications
- Additional Journal Information:
- Journal Volume: 40; Journal Issue: 13; Journal ID: ISSN 1022-1336
- Publisher:
- Wiley
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; ionomeric thermoplastic; lignin; melt‐rheology; molecular dynamics simulation; small‐angle X‐ray scattering
Citation Formats
Barnes, Sietske H., Goswami, Monojoy, Nguyen, Ngoc A., Keum, Jong K., Bowland, Christopher C., Chen, Jihua, and Naskar, Amit K. An Ionomeric Renewable Thermoplastic from Lignin-Reinforced Rubber. United States: N. p., 2019.
Web. doi:10.1002/marc.201900059.
Barnes, Sietske H., Goswami, Monojoy, Nguyen, Ngoc A., Keum, Jong K., Bowland, Christopher C., Chen, Jihua, & Naskar, Amit K. An Ionomeric Renewable Thermoplastic from Lignin-Reinforced Rubber. United States. https://doi.org/10.1002/marc.201900059
Barnes, Sietske H., Goswami, Monojoy, Nguyen, Ngoc A., Keum, Jong K., Bowland, Christopher C., Chen, Jihua, and Naskar, Amit K. Thu .
"An Ionomeric Renewable Thermoplastic from Lignin-Reinforced Rubber". United States. https://doi.org/10.1002/marc.201900059. https://www.osti.gov/servlets/purl/1559703.
@article{osti_1559703,
title = {An Ionomeric Renewable Thermoplastic from Lignin-Reinforced Rubber},
author = {Barnes, Sietske H. and Goswami, Monojoy and Nguyen, Ngoc A. and Keum, Jong K. and Bowland, Christopher C. and Chen, Jihua and Naskar, Amit K.},
abstractNote = {An ionomeric, leathery thermoplastic with high mechanical strength is prepared by a new thermal processing method from a soft, melt-processable rubber. Compositions made by incorporation of equal-mass lignin, a renewable oligomeric feedstock, in an acrylonitrile-butadiene rubber often yield weak rubbers with large lignin domains (1–2 µm). The addition of zinc chloride (ZnCl2) in such a composition based on sinapyl alcohol-rich lignin during a solvent-free synthesis induces a strong interfacial crosslinking between lignin and rubber phases. This compositional modification results in finely interspersed lignin domains (<100 nm) that essentially reinforce the rubbery matrix with a 10–22 °C rise in the glassy-to-rubbery transition temperature. The ion-modified polymer blends also show improved materials properties, like a 100% increase in ultimate tensile strength and an order of magnitude rise in Young's modulus. Coarse-grained molecular dynamics (MD) simulations verify the morphology and dynamics of the ionomeric material. The computed result also confirms that the ionomers have glassy characteristics.},
doi = {10.1002/marc.201900059},
journal = {Macromolecular Rapid Communications},
number = 13,
volume = 40,
place = {United States},
year = {Thu Apr 25 00:00:00 EDT 2019},
month = {Thu Apr 25 00:00:00 EDT 2019}
}
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