Microphase Separation of Diblock Copolymer Brushes in Selective Solvents: Single-Chain-in-Mean-Field Simulations and Integral Geometry Analysis

被引：53

作者：

Wang, Jiafang ^{[1
]}

Mueller, Marcus ^{[1
]}

机构：

[1] Univ Gottingen, Inst Theoret Phys, D-37077 Gottingen, Germany

来源：

MACROMOLECULES | 2009年 / 42卷 / 06期

关键词：

POLYMER-COATED SURFACES; PHASE-SEPARATION; POOR SOLVENTS; FILMS; MORPHOLOGY; MIXTURES; DYNAMICS; PATTERNS; MEMORY; MESH;

D O I：

10.1021/ma8026047

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Microphase separation of A-b-B diblock copolymer brushes in selective solvents is investigated by single-chain-in-mean-field (SCMF) simulations. Depending on the solvent selectivity of the blocks, the fraction (f) of the A block, and the grafting density (sigma), perpendicular segregation, lateral segregation, or their combination occurs. Using extensive simulations, we obtain morphology diagrams in terms of f and sigma for block copolymer brushes in different solvents. The morphologies of nanoscopic domains lack long-range order, and they are analyzed using integral geometry techniques.

引用

页码：2251 / 2264

页数：14

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