Crystallinity and Chain Conformation in PEO/Layered Silicate Nanocomposites
Abstract
The polymer chain conformation under confinement and the morphology of the nanohybrid materials are investigated in hydrophilic polymer/layered silicate nanocomposites. A series of poly(ethylene oxide)/sodium montmorillonite hybrids were synthesized utilizing melt intercalation with compositions covering the complete range from pure polymer to pure clay. Intercalated nanocomposites with mono- and bilayers of PEO chains are obtained in all cases. The intercalated chains as well as the ones adsorbed on the outer surface of the clay particles remain purely amorphous; their conformation, however, exhibits different characteristics from those of the amorphous neat polymer melt. It is only for compositions where a large amount of excess polymer exists outside the completely full galleries that the polymer crystallinity is recovered.
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Xc is nearly constant for PEO/SiO2 and PEO/Na+-MMT nanocomposites with low filler content and begins to decrease above a certain concentration (10-30 vol% SiO2 depending on nanoparticle size or 10 vol% Na+-MMT).
“The X c is nearly constant for PEO/SiO 2 and PEO/layered sodium montmorillonite (Na + -MMT) nanocomposites with low filler content and it begins to decrease above a certain concentration (10-30 vol% SiO 2 depending on the size of nanoparticles or 10 vol% Na + -MMT).”
From Fractionated crystallization in semicrystalline polymers (2021) · cites this paper as [313]
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Fractionated crystallization in semicrystalline polymers
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Self-citation
- Authors
- Chrissopoulou, K., Andrikopoulos, K. S., Fotiadou, S., Bollas, S., Karageorgaki, C., Christofilos, D., Voyiatzis, G. A., & Anastasiadis, S. H.
- Affiliations
- Foundation for Research and Technology Hellas (GR)
- Aristotle University of Thessaloniki (GR)
- University of Crete (GR)
- Corresponding author
- Chrissopoulou, K.
- Venue
- Macromolecules
- Publisher
- American Chemical Society (ACS)
- Published
- 2011-11-18
- Volume
- 44
- Issue
- 24
- Pages
- 9710-9722
- ISSN
- 0024-9297 (ISSN-L)
- 1520-5835
- OpenAlex
- W2073308184
- Cited by
- 134
- References
- 89
- Citations by year
- 2026: 2 · 2025: 11 · 2024: 8 · 2023: 15 · 2022: 14 · 2021: 15 · 2020: 7 · 2019: 9 · 2018: 13 · 2017: 14 · 2016: 4 · 2015: 6 · 2014: 6 · 2013: 8 · 2012: 2
- FWCI
- 4.37
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Macromolecules (publishedVersion)
- Funders
- General Secretariat for Research and Technology
- Topics
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer Nanocomposites and Properties
- Physical Sciences › Materials Science › Biomaterials › Clay minerals and soil interactions
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer crystallization and properties
- Keywords
- poly(ethylene oxide), sodium montmorillonite, polymer-clay nanocomposites, chain conformation, crystallinity, melt intercalation, intercalated nanocomposites, hybrid nanostructures
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