Thermal stability and molecular interaction of polyurethane nanocomposites prepared by in situ polymerization with functionalized multiwalled carbon nanotubes
Abstract
Polyurethane (PU) nanocomposites were prepared through conventional and in situ methods with multiwalled carbon nanotubes (MWNTs) functionalized with poly(ϵ‐caprolactone). The thermal degradation and stability of PU–MWNT nanocomposites were investigated with nonisothermal thermogravimetry and were explained in terms of the interaction between MWNTs and PU molecules with Fourier transform infrared spectroscopy. The difference in thermal stability between the conventional and in situ nanocomposites was also compared. The thermal degradation of all the nanocomposite samples took place in two stages and followed a first‐order reaction. The degradation temperature of the in situ nanocomposites was higher than that of the conventional nanocomposites with the same loading of MWNTs. The activation energy at 10% degradation and the half‐life period were also higher in the in situ nanocomposites compared to the conventional nanocomposites. Such higher thermal stability of the in situ nanocomposites was ascribed to covalent bond formation between MWNTs and PU chains, which could result in better dispersion of MWNTs in the PU matrix for the in situ nanocomposites than for the conventional nanocomposites. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008
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All research shows that inorganic fillers can more or less improve the thermal stability of shape memory polymers.
“All research shows that inorganic fillers can more or less improve the thermal stability of SMPs [17,317,337,338].”
From A review of stimuli-responsive shape memory polymer composites (2013) · cites this paper as [338]
All research shows that inorganic fillers can more or less improve the thermal stability of SMPs.
“All research shows that inorganic fillers can more or less improve the thermal stability of SMPs [17,317,337,338].”
From A review of stimuli-responsive shape memory polymer composites (2013) · cites this paper as [338]
Higher thermal stabilities (e.g., higher activation energies at 10% degradation) were achieved for SMPUs with attached MWCNTs, which seemed to enable better dispersion of fillers in polymer matrix.
“Higher thermal stabilities, e.g., higher activation energies at 10% degradation, were achieved for SMPUs with attached MWCNTs, which seemed to enable a better dispersion of the fillers in the polymer matrix.”
From Review on the Functional Determinants and Durability of Shape Memory Polymers (2010) · cites this paper as [238]
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References 25 · Cited by 39
- Authors
- Jana, R. N., & Cho, J. W.
- Affiliations
- Konkuk University (KR)
- Corresponding author
- Cho, Jae Whan
- ORCID
- Cho, Jae Whan
- Venue
- Journal of Applied Polymer Science
- Publisher
- Wiley
- Published
- 2008-02-25
- Volume
- 108
- Issue
- 5
- Pages
- 2857-2864
- ISSN
- 0021-8995 (ISSN-L)
- 1097-4628
- OpenAlex
- W1971177898
- Cited by
- 39
- References
- 25
- Citations by year
- 2024: 1 · 2018: 1 · 2017: 2 · 2016: 4 · 2015: 2 · 2014: 3 · 2013: 2 · 2012: 4
- FWCI
- 3.40
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Applied Polymer Science (publishedVersion)
- Topics
- Physical Sciences › Materials Science › Materials Chemistry › Carbon Nanotubes in Composites
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer Nanocomposites and Properties
- Physical Sciences › Materials Science › Materials Chemistry › Thermal and Kinetic Analysis
- Keywords
- polyurethane nanocomposites, multi-walled carbon nanotubes, in situ polymerization, thermal stability, thermal degradation, activation energy, nanotube dispersion, covalent bonding, non-isothermal thermogravimetry
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