Directed assembly of cylinder-forming block copolymer films and thermochemically induced cylinder to sphere transition: A hierarchical route to linear arrays of nanodots

被引：85

作者：

La, YH

Edwards, EW

Park, SM

Nealey, PF ^{[1
]}

机构：

[1] Univ Wisconsin, Dept Chem & Biol Engn, Ctr NanoTechnol, Madison, WI 53706 USA

[2] Univ Wisconsin, Mat Sci Program, Ctr NanoTechnol, Madison, WI 53706 USA

来源：

NANO LETTERS | 2005年 / 5卷 / 07期

关键词：

D O I：

10.1021/nl0506913

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A morphological transition from cylinders to spheres was induced in an asymmetric diblock copolymer, poly(styrene)-block-poly(tert-butyl acrylate) (PS-b-PtBA). The periodic arrays of the poly(tert-butyl acrylate) (PtBA) domains were transformed to the ordered poly(acrylic anhydride) (PAA) spheres via the thermal deprotection of tert-butyl acrylate linkages and the subsequent volume change of the minority block. Coupled with techniques to direct the assembly of cylinder-forming block copolymers, this finding provides new routes to fabricate ordered geometries of nanodot arrays.

引用

页码：1379 / 1384

页数：6

共 38 条

[1] Macroscopic orientation of block copolymer cylinders in single-layer films by shearing [J].