Nanosize Aggregates of Block Copolymers of Styrene and Hydrogenated Butadiene in Water
- 1 September 1998
- journal article
- research article
- Published by Taylor & Francis in International Journal of Polymer Analysis and Characterization
- Vol. 4 (5) , 435-446
- https://doi.org/10.1080/10236669808009727
Abstract
Three-block copolymer polystyrene-block-hydrogenated polybutadiene-block-poly-styrene forms micelles with aliphatic cores and polystyrene shells in dioxane. When a solution of these micelles with an appropriate stabilizer (e.g., a block copolymer of ethylene oxide and propylene oxide) is injected into excess water, a stable dispersion results. The resulting particles have a hydrodynamic radius around 55 nm and particle molecular weight is hundreds of millions. The mechanism of the particle formation and their structures are discussed.Keywords
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