Homogeneous crystallization and local dynamics of poly(ethylene oxide) (PEO) confined to nanoporous alumina
Abstract
The crystallization of poly(ethylene oxide) (PEO) confined in self-ordered nanoporous alumina (AAO) containing aligned and straight cylindrical nanopores was studied as a function of molecular weight, pore size and cooling/heating rate by differential scanning calorimetry and X-ray scattering. Bulk PEO crystallizes via heterogeneous nucleation at defects and impurities whereas PEO confined to AAO crystallizes mainly via homogeneous nucleation. Molecular weight and cooling rate have a pronounced effect on the nucleation process. Dielectric spectroscopy revealed that confining PEO to AAO results in broadening of the distribution of relaxation times associated with the segmental α relaxation process and the secondary β process. Dielectric loss peaks become broader with decreasing pore diameter.
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Suzuki et al. observed cooling-rate-dependent fractionated crystallization for PEO inside 200 nm pores.
“Suzuki et al. [272] observed a cooling rate dependent fractionated crystallization behavior for PEO inside 200 nm pores.”
From Fractionated crystallization in semicrystalline polymers (2021) · cites this paper as [272]
Fast cooling suppressed the exothermic peaks at high temperatures for PEO in AAO.
“Fast cooling suppressed the exothermic peaks at high temperatures.”
From Fractionated crystallization in semicrystalline polymers (2021) · cites this paper as [272]
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References 36 · Cited by 115
- Authors
- Suzuki, Y., Duran, H., Steinhart, M., Butt, H.-J., & Floudas, G.
- Affiliations
- Max Planck Society (DE)
- Osnabrück University (DE)
- University of Ioannina (GR)
- Corresponding author
- Floudas, George
- Venue
- Soft Matter
- Publisher
- Royal Society of Chemistry (RSC)
- Published
- 2013
- Volume
- 9
- Issue
- 9
- Pages
- 2621
- ISSN
- 1744-683X (ISSN-L)
- 1744-6848
- OpenAlex
- W2073433136
- Cited by
- 115
- References
- 36
- Citations by year
- 2026: 4 · 2025: 2 · 2024: 2 · 2023: 8 · 2022: 4 · 2021: 9 · 2020: 10 · 2019: 8 · 2018: 12 · 2017: 20 · 2016: 13 · 2015: 10 · 2014: 7 · 2013: 5
- FWCI
- 8.42
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Soft Matter (publishedVersion)
- MPG.PuRe (Max Planck Society) (submittedVersion)
- Topics
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer crystallization and properties
- Physical Sciences › Materials Science › Materials Chemistry › Material Dynamics and Properties
- Physical Sciences › Materials Science › Materials Chemistry › Block Copolymer Self-Assembly
- Keywords
- poly(ethylene oxide), nanoporous alumina, homogeneous nucleation, confined crystallization, cylindrical nanopores, pore size effects, molecular weight effects, cooling rate, beta relaxation, local dynamics, dielectric relaxation, polymer crystallization
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