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Micelle formation by AB block copolymers of polystyrene and poly(dimethylsiloxane) in n ‐alkanes

1979; Wiley; Volume: 180; Issue: 7 Linguagem: Inglês

10.1002/macp.1979.021800711

0025-116X

J. V. Dawkins, Graham Taylor,

Synthetic Organic Chemistry Methods

Abstract AB block copolymers of polystyrene and poly(dimethylsiloxane) have been synthesized by “living” anionic polymerisation methods. The micellar behaviour of these block copolymers in n ‐alkanes has been investigated as a function of the molecular weight of the polystyrene anchor A block and of the anchor/soluble balance (ASB) calculated from the relative block lengths. Micelle sizes have been determined by electron microscopy and are shown to conform to a simple geometrical model based upon two concentric spheres, when the ASB is below 18.