Format:
Online-Ressource
ISSN:
1521-3935
Content:
Abstract: The influence of molar mass and chemical composition of the copolymer on the structural parameters of copolymer micelles was investigated. Two polystyrene‐block‐poly (ethylene‐co‐propene) copolymers with the same polystyrene block length but different poly (ethylene‐co‐propene) length were used. The micelles were studied in solutions of octane and 5‐methyl‐2‐hexanone, selective solvents for poly (ethylene‐co‐propene) (PEP) and polystyrene (PS) blocks, respectively. Static light scattering and viscosity measurements were carried out in order to determine the weight‐average molar mass, radius of gyration, second virial coefficient and hydrodynamic radius of the micelles. The association number of the micelles depends on the location of the largest copolymer block in the micelle structure. An influence of the copolymer structure on the micelle dimensions was also found.
In:
volume:194
In:
number:3
In:
year:2003
In:
pages:983-991
In:
extent:9
In:
Macromolecular chemistry and physics, Weinheim : Wiley-VCH, 1947-, 194, Heft 3 (2003), 983-991 (gesamt 9), 1521-3935
Language:
English
DOI:
10.1002/macp.1993.021940321
URN:
urn:nbn:de:101:1-2024011303593184563760
URL:
https://doi.org/10.1002/macp.1993.021940321
URL:
https://nbn-resolving.org/urn:nbn:de:101:1-2024011303593184563760
URL:
https://d-nb.info/1315830256/34
URL:
https://doi.org/10.1002/macp.1993.021940321