Free-Standing Nanomaterials from Block Copolymer Self-Assembly

被引：32

作者：

Quemener, Damien ^{[1
]}

Bonniol, Guilhem ^{[1
]}

Phan, Trang N. T. ^{[2
,3
,4
]}

Gigmes, Didier ^{[2
,3
,4
]}

Bertin, Denis ^{[2
,3
,4
]}

Deratani, Andre ^{[1
]}

机构：

[1] Univ Montpellier 2, CNRS, Inst Europeen Membranes, ENSCM,UM2,UMR 5635, F-34095 Montpellier 05, France

[2] Univ Aix Marseille 1, CNRS, Lab Chim Provence, CNRS,UMR 6264, F-13397 Marseille, France

[3] Univ Aix Marseille 2, CNRS, Lab Chim Provence, CNRS,UMR 6264, F-13397 Marseille 20, France

[4] Univ Aix Marseille 3, CNRS, Lab Chim Provence, CNRS,UMR 6264, F-13397 Marseille 20, France

来源：

MACROMOLECULES | 2010年 / 43卷 / 11期

关键词：

TRIBLOCK COPOLYMERS; MULTIPLE MORPHOLOGIES; SELECTIVE SOLVENTS; DIBLOCK COPOLYMERS; MICELLES; SURFACES; BANDGAP; ALKOXYAMINES; TRANSITIONS; INITIATOR;

D O I：

10.1021/ma100809v

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

This work presents the preparation of nanomaterials thanks to the assembly of a triblock copolymer P(Sty(319)-co-AN(262))-b-PEO(795)-b-P(Sty(319)-co-AN(262)). The 3D construction is directed by the assembly of block copolymer micelles prepared in situ during the spin-coating of the block copolymer solution. With a solvent system DMF/toluene 50/50, spherical micelles are formed and assembled into a nanoparticle film. The micelle size in the dry state is 50 nm. With a solvent system DMF/toluene 25/75, worm-like micelles (50 nm in diameter) are formed in situ together with "Y-cylinders" and lead to what we called "spider web" Films. Micelles are strongly interacting through a dynamic association process between "bridge" and "loop" conformations of the ABA triblock copolymer. When micelles come into contact, some bridges are formed with the two A blocks localized in the heart of two different micelles. The resulting materials show good mechanical properties and enable the preparation of self-standing polymer films.

引用

页码：5060 / 5065

页数：6

共 45 条

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