Two-dimensional assemblies from crystallizable homopolymers with charged termini

Xiaoming He, Ming-Siao Hsiao, Charlotte Boott, Robert Harniman, Ali Nazemi, Xiaoyu Li, Mitchell Winnik, Ian Manners

Research output: Contribution to journalArticle (Academic Journal)peer-review

103 Citations (Scopus)
609 Downloads (Pure)

Abstract

The creation of shaped, uniform and colloidally stable two-dimensional (2D) assemblies by bottom-up methods represents a challenge of widespread current interest for a variety of applications. Herein, we describe the utilization of surface charge to stabilize self-assembled planar structures that are formed from crystallizable polymer precursors by a seeded growth approach. Addition of crystallizable homopolymers with charged end-groups to seeds generated by the sonication of block copolymer micelles with crystalline cores yields uniform platelet micelles with controlled dimensions. Significantly, the seeded growth approach is characterized by a morphological memory effect whereby the origin of the seed, which can involve a quasi-hexagonal or rectangular 2D platelet precursor, dictates the observed 2D platelet shape. This new strategy is illustrated using two different polymer systems, and opens the door to the construction of 2D hierarchical structures with broad utility.
Original languageEnglish
Pages (from-to)481–488
Number of pages8
JournalNature Materials
Volume16
Issue number4
Early online date9 Jan 2017
DOIs
Publication statusPublished - 1 Apr 2017

Structured keywords

  • BCS and TECS CDTs

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