Reversible thermal-induced fluorescence color change of tetraphenylethylene-labeled nylon-6

Jiaru Xu, Wenxi Ji, Chao Li, Yufeng Lv, Zijie Qiu, Longcheng Gao, Erqiang Chen, Jacky W.Y. Lam, Benzhong Tang, Lei Jiang

Research output: Contribution to journalArticleResearchpeer-review

5 Citations (Scopus)

Abstract

Nylon is the first synthetic fiber material and is widely used throughout the world. However, traditional nylons show limited optical applications as they emit no or weak fluorescence. Herein, a fluorescent nylon-6 is synthesized by utilizing tetraphenylethylene (TPE) carrying two amino groups as coinitiator. The resulting TPE-labeled nylon-6 exhibits reversible thermal-induced fluorescence color change. This unique property arises from the synergistic effect of its chemical structure and conformation. The thermal expansion of the polymer at high temperature induces the phenyl rings of TPE to rotate in a greater extent, which decreases the conjugation of TPE to lead to a blueshift in its fluorescence. The novel fluorescence property of TPE-labeled nylon-6 enables it to find applications in fields like chemosensor and security label.

Original languageEnglish
Article number1701149
Number of pages5
JournalAdvanced Optical Materials
Volume6
Issue number6
DOIs
Publication statusPublished - 19 Mar 2018
Externally publishedYes

Keywords

  • fluorescence
  • nylon-6
  • tetraphenylethylene

Cite this