| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5210994 | Reactive and Functional Polymers | 2009 | 6 Pages |
Abstract
A novel halochromic fiber was synthesized by first aminating commercially available polyacrylonitrile fiber with ethylenediamine and then immobilizing phenolphthalein covalently through a Mannich reaction. The fiber was characterized by XRD, SEM, FTIR and UV-vis spectroscopy. The halochromic properties, response speed and durability of this functional fiber have been investigated. This halochromic fiber exhibited remarkable color change from pale yellow to violet in a wide range of alkaline solutions (pHÂ >Â 10.1) with short response time (<1Â s for 20Â wt-% NaOH) and strong recycle stability (>300 times).
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Authors
Lianhai Zhang, Zhiwei Li, Ruixiang Chang, Yu Chen, Wenqin Zhang,