Cited by 98Block Copolymer Self-AssemblyAdvanced Polymer Synthesis and CharacterizationSurfactants and Colloidal Systems

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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Crossref · 10.1021/ma020927e

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Research works printed but not linked: 6

  1. Mortensen K., 2001, Asp
  2. Sapurina I., 2001, Asp
  3. Benmouna M., 1993, J. Phys. II (Paris), 3, 1401
  4. Borsali R., 1994, Makromol. Chem. Symp.
  5. Borsali R., 2002, Polym. Prepr., 43, 201
  6. Zhong Q., 1993, Surf. Sci. Lett., 290, L688

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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
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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