Multicolor-tunable and Flexible Sodium Carboxymethyl Cellulose-based Ultralong Room-temperature Phosphorescence Materials for Advanced Information Encryption

Tian-Yu Li; Yu-Tong Zhou; Zhi-Hui Wang; Fa-Rong Tao; Li-Ping Wang; Guang Li

doi:10.1007/s10118-026-3557-1

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Multicolor-tunable and Flexible Sodium Carboxymethyl Cellulose-based Ultralong Room-temperature Phosphorescence Materials for Advanced Information Encryption

RESEARCH ARTICLE | Updated：2026-03-26

- Multicolor-tunable and Flexible Sodium Carboxymethyl Cellulose-based Ultralong Room-temperature Phosphorescence Materials for Advanced Information Encryption
- Chinese Journal of Polymer Science Vol. 44, Issue 4, Pages: 1102-1113(2026)
- Affiliations：
  
  School of Materials Science and Engineering, Liaocheng University, Liaocheng 252059, China
- Author bio：
  
  taofarong@lcu.edu.cn (F.R.T.)
  wangliping1@lcu.edu.cn (L.P.W.)
  liguang@lcu.edu.cn (G.L.)
- Funds：
- DOI：10.1007/s10118-026-3557-1
  CLC：
- Received：27 October 2025，
  
  Revised：2025-12-10，
  
  Accepted：16 January 2026，
  
  Online First：03 March 2026，
  
  Published：05 April 2026
- Accepted：
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Li, T. Y.; Zhou, Y. T.; Wang, Z. H.; Tao, F. R.; Wang, L. P.; Li, G. Multicolor-tunable and flexible sodium carboxymethyl cellulose-based ultralong room-temperature phosphorescence materials for advanced information encryption. Chinese J. Polym. Sci. 2026, 44, 1102–1113

Tian-Yu Li, Yu-Tong Zhou, Zhi-Hui Wang, et al. Multicolor-tunable and Flexible Sodium Carboxymethyl Cellulose-based Ultralong Room-temperature Phosphorescence Materials for Advanced Information Encryption[J]. Chinese Journal of Polymer Science, 2026, 44(4): 1102-1113.
Li, T. Y.; Zhou, Y. T.; Wang, Z. H.; Tao, F. R.; Wang, L. P.; Li, G. Multicolor-tunable and flexible sodium carboxymethyl cellulose-based ultralong room-temperature phosphorescence materials for advanced information encryption. Chinese J. Polym. Sci. 2026, 44, 1102–1113 DOI： 10.1007/s10118-026-3557-1.

Tian-Yu Li, Yu-Tong Zhou, Zhi-Hui Wang, et al. Multicolor-tunable and Flexible Sodium Carboxymethyl Cellulose-based Ultralong Room-temperature Phosphorescence Materials for Advanced Information Encryption[J]. Chinese Journal of Polymer Science, 2026, 44(4): 1102-1113. DOI： 10.1007/s10118-026-3557-1.

摘要

Aqueous-doped sodium carboxymethyl cellulose-based room-temperature phosphorescence materials exhibit ultralong lifetimes

via

rigid hydrogen-bond networks. Through triplet-to-singlet Förster resonance energy transfer with matched dyes

multicolor afterglow emissions are realized

enabling advanced information encryption applications of flexible and sustainable materials.

Abstract

Developing eco-friendly natural polymer-based room-temperature phosphorescence (RTP) materials with color-tunability and flexibility remains a crucial yet challenging task. Here

we fabricate a sustainable multicolor-tunable and flexible RTP system based on sodium carboxymethyl cellulose (NaCMC).

-Aminobenzoic acid (PABA) is doped into NaCMC matrix to facilely con

struct NaCMC/PABA composites. The rigid hydrogen-bonding networks formed between NaCMC and PABA significantly suppress molecular vibration and non-radiative decay

resulting in an ultralong RTP lifetime of up to 1263 ms and a bright blue afterglow lasting 11 s. By incorporating commercial fluorescent dyes fluorescein (FL)

calcein (CAL)

and lisamine rhodamine B (LRB) as energy acceptors into the NaCMC/PABA donor matrix

multicolor long-afterglow emissions are realized in the long-wavelength region

via

triplet-to-singlet Förster resonance energy transfer (TS-FRET). Moreover

large-area

multicolor and flexible NaCMC-based RTP films with excellent mechanical properties are conveniently fabricated by a doping-coating-drying approach. The developed multicolor and flexible NaCMC-based RTP materials are successfully used for advanced information encryption. This work provides a direction for developing sustainable

multicolor-tunable

and flexible natural polymer-based RTP materials.

关键词

Keywords

references

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