Phase Separated Block Copolymer Particles with Tuneable Morphologies: Striped, Onion, and Patchy Particles

Chao Chen, Zeyun Xiao, Luke A. Connal*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

The aqueous solution self-assembly of a series of poly(2-vinyl pyridine)-block-poly(dimethylsiloxane) (P2VP-b-PDMS) diblock copolymers is reported. The particles show a phase separated interior morphology which can be tuned from onion-like sphere to axially stacked lamella with dimensions in the nanoscale. The key to this transition is the control of the interfacial properties using a mixture of two surfactants with preferential wetting to the respective blocks (P2VP or PDMS). Influence of block weights on particle morphology was investigated with results showing that the volume fraction of PDMS plays a crucial role in self-assembly, and a non-conventional structure of a prolate spheroid nanoparticle with a unique phase separated interior morphology can be synthesised.

Original languageEnglish
Pages (from-to)741-745
Number of pages5
JournalAustralian Journal of Chemistry
Volume69
Issue number7
DOIs
Publication statusPublished - 2016
Externally publishedYes

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