Synthesis, morphology and photophysical properties of rod-coil copolymers

被引：0

作者：

Yu, Yang-Yen ^{[1
]}

Chien, Wen-Chen ^{[2
]}

Hsu, Chung-Yi ^{[1
]}

机构：

[1] Mingchi Univ Technol, Dept Mat Engn, Taipei, Taiwan

[2] Mingchi UnivTechnol, Dept Chem Engn, Taipei, Taiwan

来源：

MULTI-FUNCTIONAL MATERIALS AND STRUCTURES II, PTS 1 AND 2 | 2009年 / 79-82卷

关键词：

Rod-coil copolymers; poly(2-vinyl pyridine); Polyfluorene; Morphology; Photophysics; BLOCK-COPOLYMERS;

D O I：

10.4028/www.scientific.net/AMR.79-82.2095

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The synthesis, morphology, and photophysical properties of poly[2,7-(9,9-dihexylfluorene)]-block-poly(2-vinyl pyridine) (PF-b-P2VP) with different coil lengths in mixed solvents of THF/methanol are reported. A flakes-like lamellar morphology is observed at a short coil length of PF-b-P2VP. As the coil length increases, a spherical and large compound micelle is formed. Upon further increase of the coil length, the morphological transformation from spherical micelles to long rod-like structures is observed. TGA results indicate a good thermal stability of the prepared copolymers. The spectra of optical absorption for the PF-b-P2VP in solution have a blue shift when the fraction of methanol in the mixed solvent increases. The present study shows that the significance of the rod/coil ratio and selective solvent content on the aggregate morphologies and photophysical properties of the rod-coil block copolymers.

引用

页码：2095 / +

页数：2

共 13 条

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