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Spherulite‐Like Micelles

Authors :
Shaofei Song
Jason Tam
Mitchell A. Winnik
Ian Manners
Shuyang Ye
Hang Zhou
Jane Y. Howe
Source :
Angewandte Chemie International Edition. 60:10950-10956
Publication Year :
2021
Publisher :
Wiley, 2021.

Abstract

One-dimensional (1D) and 2D structures by crystallization-driven self-assembly of block copolymers (BCPs) can form fascinating hierarchical structures through secondary self-assembly. But examples of 3D structures formed via hierarchical self-assembly are rare. Here we report seeded growth experiments in decane of a poly(ferrocenyldimethylsilane) BCP with an amphiphilic corona forming block in which lenticular platelets grow into classic spherulite-like uniform colloidally stable structures. These 3D objects are spherically symmetric on the exterior, but asymmetric near the core, where there is a more open structure consisting of sheaf-like leaves. The most remarkable aspect of these experiments is that growth stops at different stages of growth process, depending upon how much unimer is added in the seeded growth step. The system provides a model for studying spherulitic growth where real-time observations on their growth at different stages remains challenging.

Details

ISSN :
15213773 and 14337851
Volume :
60
Database :
OpenAIRE
Journal :
Angewandte Chemie International Edition
Accession number :
edsair.doi.dedup.....bf19ab48cb8ab05d34841f4aed2e7e54
Full Text :
https://doi.org/10.1002/anie.202101177