Molecular-Curvature-Induced Spontaneous Formation of Curved and Concentric Lamellae through Nucleation

Angewandte Chemie
Xue-Hui DongStephen Z D Cheng

Abstract

Spontaneous formation of concentric lamellae was observed in self-assembling giant surfactants consisting of a fluorinated polyhedral oligomeric silsesquioxane (FPOSS) head and flexible polymer tail(s). Owing to the asymmetrical sizes of the head and tail blocks and the rectangular molecular interface, the giant surfactants assumed a truncated-wedge-like molecular shape, which induced morphological curvature during self-assembly, thus resulting in the formation of curved and concentric lamellae. These curved/concentric lamellae were observed in FPOSS-based giant surfactants with different architectures and compositions. The spontaneous curvature formation not only promotes our fundamental understanding of assembly principles, but also provides a promising and efficient approach to the fabrication of a wide range of high-performance devices.

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Citations

Jun 18, 2016·Langmuir : the ACS Journal of Surfaces and Colloids·Chaoying YangJiaping Lin
Aug 5, 2016·Langmuir : the ACS Journal of Surfaces and Colloids·Lihuan WangJingcheng Hao
Nov 15, 2019·Chemistry : a European Journal·Yu ShaoWen-Bin Zhang
May 10, 2018·Nature Communications·Heng WangXiaopeng Li
Jan 22, 2020·Chemistry : a European Journal·Ruimeng ZhangStephen Z D Cheng
Dec 23, 2017·Langmuir : the ACS Journal of Surfaces and Colloids·Shintaro HaraKazuyuki Kuroda

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