Block Copolymer Nanocontainers

被引：60

作者：

Pinna, Marco ^{[1
]}

Hiltl, Stephanie ^{[2
]}

Guo, Xiaohu ^{[1
]}

Boeker, Alexander ^{[2
]}

Zvelindovsky, Andrei V. ^{[1
]}

机构：

[1] Univ Cent Lancashire, Computat Phys Grp, Preston PR1 2HE, Lancs, England

[2] Rhein Westfal TH Aachen, Lehrstuhl Makromol Mat & Oberflachen, RWTH Aachen eV, DWI, D-52056 Aachen, Germany

来源：

ACS NANO | 2010年 / 4卷 / 05期

基金：

英国工程与自然科学研究理事会;

关键词：

block copolymer; computer simulation; spherical particle; scanning force microscopy; nanocapsule; SYMMETRIC DIBLOCK COPOLYMER; ABA TRIBLOCK COPOLYMERS; FIELD-INDUCED ALIGNMENT; THIN-FILMS; MICROPHASE SEPARATION; PHASE-BEHAVIOR; DYNAMICS; ORIENTATION; MORPHOLOGY; SIMULATIONS;

D O I：

10.1021/nn901853e

中图分类号：

O6 [化学];

学科分类号：

070301 [无机化学];

摘要：

Using cell dynamics computer simulation, we perform a systematic study of thin block copolymer films around a nanoparticle. Lamellar-, cylinder-, and sphere-forming block copolymers are investigated with respect to different film thicknesses, particle radii, and boundary conditions at the film interfaces. The obtained structures include standing lamellae and cylinders, "onions", cylinder "knitting balls", "golf ball", layered spherical, "virus"-like and mixed morphologies with T-junctions and U-type defects. The kinetics of the structure formation and difference with planar thin films are discussed. Our simulations suggest that novel porous nanocontainers can be formed by the coating of a sacrificial nanobead by a block copolymer layer with a well-controlled nanostructure. In addition, first scanning force microscopy experiments on a model system reveal surface structures similar to those predicted by our simulations.

引用

页码：2845 / 2855

页数：11

共 75 条

[1]

CELL DYNAMIC SYSTEM APPROACH TO BLOCK COPOLYMERS [J].