The DOI matches its Crossref record; 40 of the 40 references it cites were found in a registry or an index.
Micellar Morphological Changes Promoted by Cyclization of PS-b-PI Copolymer: DLS and AFM Experiments
Abstract
We study the effect of the cyclization of a linear poly(styrene- b -isoprene) PS−PI copolymer on the morphology of the micelles formed in heptane (a selective solvent for PI). The linear and the cyclic copolymers have exactly the same degree of polymerization, i.e. 290 for PS and 110 for PI, i.e., volume fraction Φ PS = 0.78. We use dynamic light scattering (DLS) and atomic force microscopy (AFM) techniques to characterize the micellar morphology made from copolymer molecules, focusing on the effect of cyclization. We also report the concentration effect on the micelle size and shape made from the linear and cyclic copolymers. Our results show that the micelles made from linear PS−PI adopt a “classical” spherical shape and keep the same morphology parameters over the range of investigated concentrations. In contrast, the micelles arising from cyclic copolymer chains adopt a giant wormlike shape. In this later case, both the size and the shape evolve when the concentration is increased, starting from small individual “sunflower-like” micelles, at low concentrations, to giant wormlike micelles at higher concentrations. Our results suggest also that these giant wormlike micelles made from cyclic copolymer chains result from the self-assembly of “sunflower-like” elementary micelles.
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“Indeed, the size of curcumin-loaded monomethoxypoly (ethylene glycol)-poly(ε-caprolactone) (mPEG-PCL) micelles [157] was found to be 89.0 nm by AFM and 98.0 nm by DLS, respectively.”
From Polymeric micelles in drug delivery: An insight of the techniques for their characterization and assessment in biorelevant conditions (2021) · cites this paper as [157]
In the citing paper
“Generally, the size obtained by using AFM results slightly lower compared to DLS analysis, probably because AFM technique measures the diameter of particles when collapsed after solvent evaporation whereas DLS focuses on the determination of the hydrodynamic diameter, that is sensitive to corona swelling caused by the solvent.”
From Polymeric micelles in drug delivery: An insight of the techniques for their characterization and assessment in biorelevant conditions (2021) · cites this paper as [157]
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Metadata
- Authors
- Minatti, E., Viville, P., Borsali, R., Schappacher, M., Deffieux, A., & Lazzaroni, R.
- Affiliations
- Centre National de la Recherche Scientifique (FR)
- Corresponding author
- Borsali, R.
- Venue
- Macromolecules
- Publisher
- American Chemical Society (ACS)
- Published
- 2003-04-29
- Volume
- 36
- Issue
- 11
- Pages
- 4125-4133
- ISSN
- 0024-9297 (ISSN-L)
- 1520-5835
- OpenAlex
- W2027958708
- Cited by
- 98
- References
- 40
- Citations by year
- 2026: 1 · 2025: 4 · 2024: 4 · 2023: 3 · 2022: 5 · 2021: 2 · 2020: 3 · 2018: 3 · 2017: 1 · 2016: 3 · 2015: 3 · 2014: 3 · 2013: 7 · 2012: 1
- FWCI
- 4.24
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Macromolecules (publishedVersion)
- Funders
- Fonds De La Recherche Scientifique - FNRS
- Topics
- Physical Sciences › Materials Science › Materials Chemistry › Block Copolymer Self-Assembly
- Physical Sciences › Chemistry › Organic Chemistry › Advanced Polymer Synthesis and Characterization
- Physical Sciences › Chemistry › Physical and Theoretical Chemistry › Surfactants and Colloidal Systems
- Keywords
- poly(styrene-b-isoprene), micellar morphology, wormlike micelles, selective solvents, n-heptane, micelle self-assembly, block copolymer micelles
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