Polymer-based Multicolor Room Temperature Phosphorescence Materials Consisting of Naphthalene Carboxylic Acid Derivatives

Xin-Nan Sun; Zi-Yue Bao; Xing-Yue Qi; Fang-Ting Li; Yu-Jun Xie; Li-Yao Zhang; Zhen Li

doi:10.1007/s10118-026-3770-y

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Polymer-based Multicolor Room Temperature Phosphorescence Materials Consisting of Naphthalene Carboxylic Acid Derivatives

RESEARCH ARTICLE | Updated：2026-09-20

- Polymer-based Multicolor Room Temperature Phosphorescence Materials Consisting of Naphthalene Carboxylic Acid Derivatives
- Polymer-based Multicolor Room Temperature Phosphorescence Materials Consisting of Naphthalene Carboxylic Acid Derivatives
- Chinese Journal of Polymer Science 2026年44卷页码：1-10
- Affiliations：
  
  a.School of Life Sciences, Tianjin University, Tianjin 300072, China
  b.Institute of Molecular Aggregation Science, Tianjin University, Tianjin 300072, China
  c.Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, Department of Chemistry, Wuhan University, Wuhan 430072, China
  d.College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
- Author bio：
  
  xieyujun@tju.edu.cn (Y.J.X.)
  lyzhang26@whu.edu.cn (L.Y.Z.)
  lizhen@whu.edu.cn (Z.L.)
- Funds：
  
  This work was financially supported by the National Natural Science Foundation of China (No. 22235006), the starting Grants of Tianjin University and Tianjin Government, and the Open Fund of the State Key Laboratory of Luminescent Materials and Devices (South China University of Technology; No. 2024-skllmd-04).;Zhen Li is an editorial board member for Chinese Journal of Polymer Science and was not involved in the editorial review or the decision to publish this article. All authors declare that there are no competing interests.Electronic supplementary information (ESI) is available free of charge in the online version of this article at http://doi.org/10.1007/s10118-026-3770-y.Data supporting the findings of this study are available from the corresponding author upon reasonable request. Author’s contact information: xieyujun@tju.edu.cn, lyzhang26@whu.edu.cn, lizhen@whu.edu.cn.
- DOI：10.1007/s10118-026-3770-y
  中图分类号：
- 收稿：2026-05-05，
  
  修回：2026-06-01，
  
  录用：2026-06-04，
  
  网络首发：2026-09-20，
  
  纸质出版：2026-07
- Accepted：
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Sun, X. N.; Bao, Z. Y.; Qi, X. Y.; Li, F. T.; Xie, Y. J.; Zhang, L. Y.; Li, Z. Polymer-based multicolor room temperature phosphorescence materials consisting of naphthalene carboxylic acid derivatives. Chinese J. Polym. Sci. https://doi.org/10.1007/s10118-026-3770-y

Xin-Nan Sun, Zi-Yue Bao, Xing-Yue Qi, et al. Polymer-based Multicolor Room Temperature Phosphorescence Materials Consisting of Naphthalene Carboxylic Acid Derivatives[J/OL]. Chinese Journal of Polymer Science, 2026, 441-10.
Sun, X. N.; Bao, Z. Y.; Qi, X. Y.; Li, F. T.; Xie, Y. J.; Zhang, L. Y.; Li, Z. Polymer-based multicolor room temperature phosphorescence materials consisting of naphthalene carboxylic acid derivatives. Chinese J. Polym. Sci. https://doi.org/10.1007/s10118-026-3770-y DOI：

Xin-Nan Sun, Zi-Yue Bao, Xing-Yue Qi, et al. Polymer-based Multicolor Room Temperature Phosphorescence Materials Consisting of Naphthalene Carboxylic Acid Derivatives[J/OL]. Chinese Journal of Polymer Science, 2026, 441-10. DOI： 10.1007/s10118-026-3770-y.

摘要

Abstract

Recently

polymer-based room temperature phosphorescence (RTP) materials have emerged as a research focus owing to their excellent mechanical strength

flexibility

and processability. Herein

a series of poly(vinyl alcohol) (PVA)-based films exhibiting multicolor afterglow emission were fabricated and characterized by using seven naphthalene carboxylic acid derivatives (Nap-

COOH) as guests. Both the number and substitution position of carboxyl groups in Nap-

COOH significantly influenced the afterglow color and duration. With an increasing number of carboxyl groups at the

-position of the naphthalene ring

the doped system showed a gradual red-shift of afterglow emission

along with a continuous decrease in RTP lifetime. Moreover

the 1

8-naphthalenetetracarboxylic acid doped PVA films exhibited unique excitation-wavelength-dependent and time-dependent multicolor afterglow emission

and also displayed concentration-dependent behavior. As an example

the 2-naphthoic acid doped PVA film (2-NapCOOH@PVA) could dynamically switch RTP off or on in response to water or heat stimulation. 2-NapCOOH@PVA

0588

exhibited higher water sensitivity than 2-NapCOOH@PVA

1799

demonstrating the superior water resistance of PVA films with higher degrees of polymerization and alcoholysis. Subsequently

the potential applications of these PVA-based films were verified in screen printing

information storage and encryption.

关键词

Keywords

references

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