Polymeric one-dimensional reflectors based on self-organization of comb-shaped supramolecules

被引：0

作者：

Kosonen, H ^{[1
]}

Valkama, S ^{[1
]}

Ruokolainen, J ^{[1
]}

ten Brinkel, G ^{[1
]}

Ikkala, O ^{[1
]}

机构：

[1] Helsinki Univ Technol, Dept Engn Phys & Math, FIN-02015 Espoo, Finland

来源：

SELF-ASSEMBLED NANOSTRUCTURED MATERIALS | 2003年 / 775卷

关键词：

D O I：

暂无

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Polystyrene-block-poly(4-vinylpyridine) (PS-block-P4VP) diblock copolymer was complexed with dodecylbenzenesulfonic acid (DBSA), leading to comb-coil polymeric supramolecules PS-block-P4VP(DBSA)(y) (y = 1.0, 1.5, and 2.0). Complexes formed hierarchical lamellar structure with long period of ca. 1400 Angstrom. Due to periodicity and refractive index contrast between the layers, transmission and reflectance measurements showed a relatively narrow incomplete bandgap at ca. 460 nm. The angular dependence of the bandgap was also studied using different angles (theta) relative to the surface normal. The mid-gap was blue-shifted when the incident angle was increased indicating that the lamellar structure was partly oriented by the surfaces of quartz glasses.

引用

页码：147 / 152

页数：6

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