Mesosized crystal-like structure of hexagonally packed hollow hoops by solution self-assembly of diblock copolymers

被引：141

作者：

Zhang, LF ^{[1
]}

Bartels, C ^{[1
]}

Yu, YS ^{[1
]}

Shen, HW ^{[1
]}

Eisenberg, A ^{[1
]}

机构：

[1] McGill Univ, Dept Chem, Montreal, PQ H3A 2K6, Canada

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 79卷 / 25期

关键词：

D O I：

10.1103/PhysRevLett.79.5034

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Mesosize crystal-like aggregates with an internal structure of hexagonally packed hollow hoops (HHH) in a polystyrene matrix have been prepared in solution by self-assembly of asymmetric polystyrene-b-poly(acrylic acid) diblock copolymers. Most of the aggregates are cylindrical or in the shape of truncated cones. The external surface of the aggregates and the internal surface of the hollow hoops are Lines with short: poly(acrylic acid) chains, The hoop morphology is imposed because the end-capping energy of a rod on this size scale is more important than the curvature energy. A strong interdependence between the external shape and the internal structure in these mesosize particles is demonstrated.

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页码：5034 / 5037

页数：4

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