Morphology and pH Sensing Characteristics of New Luminescent Electrospun Fibers Prepared from Poly(phenylquinoline)-block-Polystyrene/Polystyrene Blends

✍ Scribed by Chi-Ching Kuo; Yi-Chih Tung; Wen-Chang Chen

• Book ID: 102943129
• Publisher: John Wiley and Sons
• Year: 2010
• Tongue: English
• Weight: 617 KB
• Volume: 31
• Category: Article
• ISSN: 1022-1336
• DOI: 10.1002/marc.200900566

✦ Synopsis

Abstract

New luminescent electrospun (ES) fibers for pH‐tunable colorimetric sensors were prepared from binary blends of poly(phenylquinoline)‐block‐polystyrene (PPQ‐b‐PS)/polystyrene (PS) with a single‐capillary spinneret. The PPQ‐b‐PS aggregated domain sizes in the ES fibers prepared from dichloromethane (CH~2~Cl~2~), chlorobenzene (CB) and chloroform (CHCl~3~) were 1.5 ± 0.5, 2.2 ± 0.4 and 4.1 ± 1.1 µm, respectively. Such variation on the aggregation size led to the red‐shifting photoluminescence spectra changing from green, to yellow, and orange. ES fibers prepared from CH~2~Cl~2~ exhibited pH‐tunable photoluminescence and the emission maximum varied from 532 to 560 nm as the pH value changed from 7 to 1. The study demonstrated that the ES fibers prepared could have potential applications for sensory devices.

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