Matrix Effect on Polydiarylfluorenes Electrospun Hybrid Microfibers: From Morphology Tuning to High Explosive Detection Efficiency

Wei Xue; Man Xu; Chuan-Xin Wei; Hua-Min Sun; Li-Li Sun; Sheng-Jie Wang; Jin-Yi Lin; Nai-En Shi; Ling-Hai Xie; Wei Huang

doi:10.1007/s10118-023-2927-1

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Matrix Effect on Polydiarylfluorenes Electrospun Hybrid Microfibers: From Morphology Tuning to High Explosive Detection Efficiency

RESEARCH ARTICLE | Updated：2023-06-14

- Matrix Effect on Polydiarylfluorenes Electrospun Hybrid Microfibers: From Morphology Tuning to High Explosive Detection Efficiency
- Chinese Journal of Polymer Science Vol. 41, Issue 7, Pages: 1011-1017(2023)
- Affiliations：
  
  a.State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China
  b.Center for Supramolecular Optoelectronics (CSO), Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), Nanjing 211816, China
  c.Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE) & Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU), Xi'an 710072, China
- Author bio：
  
  iamjylin@njtech.edu.cn (J.Y.L.)
  iamneshi@njupt.edu.cn (N.E.S.)
  wei-huang@njtech.edu.cn (W.H.)
- Funds：
- DOI：10.1007/s10118-023-2927-1
  CLC：
- Received：05 November 2022，
  
  Revised：2022-12-27，
  
  Accepted：29 December 2022，
  
  Online First：03 March 2023，
  
  Published：01 July 2023
- Accepted：
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Xue, W.; Xu, M.; Wei, C. X.; Sun, H. M.; Sun, L. L.; Wang, S. J.; Lin, J. Y.; Shi, N. E.; Xie, L. H.; Huang, W. Matrix effect on polydiarylfluorenes electrospun hybrid microfibers: from morphology tuning to high explosive detection efficiency. Chinese J. Polym. Sci. 2023, 41, 1011–1017

Wei Xue, Man Xu, Chuan-Xin Wei, et al. Matrix Effect on Polydiarylfluorenes Electrospun Hybrid Microfibers: From Morphology Tuning to High Explosive Detection Efficiency[J]. Chinese Journal of Polymer Science, 2023, 41(7): 1011-1017.
Xue, W.; Xu, M.; Wei, C. X.; Sun, H. M.; Sun, L. L.; Wang, S. J.; Lin, J. Y.; Shi, N. E.; Xie, L. H.; Huang, W. Matrix effect on polydiarylfluorenes electrospun hybrid microfibers: from morphology tuning to high explosive detection efficiency. Chinese J. Polym. Sci. 2023, 41, 1011–1017 DOI： 10.1007/s10118-023-2927-1.

Wei Xue, Man Xu, Chuan-Xin Wei, et al. Matrix Effect on Polydiarylfluorenes Electrospun Hybrid Microfibers: From Morphology Tuning to High Explosive Detection Efficiency[J]. Chinese Journal of Polymer Science, 2023, 41(7): 1011-1017. DOI： 10.1007/s10118-023-2927-1.

摘要

A flexible polyethylene oxide (PEO)are introduced as the supramolecular matrix to obtain a series of polydiarylfluorenes electrospun hybrid microfibers toward the highly sensitive for detecting explosives

associated with the synergistic effect of β-conformation formation

high deep-blue emission efficiency and surface morphology of ES fibers.

Abstract

Precisely optimizing the morphology of functional hybrid polymeric systems is crucial to improve its photophysical property and further extend their optoelectronic applications. The physic-chemical property of polymeric matrix in electrospinning (ES) processing is a key factor to dominate the condensed structure of these hybrid microstructures and further improve its functionality. Herein

we set a flexible poly(ethylene oxide) (PEO) as the matrix to obtain a series of polydiarylfluorenes (including PHDPF

PODPF and PNDPF) electrospun hybrid microfibers with a robust deep-blue emission. Significantly different from the rough morphology of their poly(

-vinylcarbazole) (PVK) ES hybrid fibers

polydiarylfluorenes/PEO ES fibers showed a smooth morphology and small size with a diameter of 1~2 μm. Besides

there is a relatively weak phase separation under rapid solvent evaporation during the ES processing

associated with the hydrogen-bonded-assisted network of PEO in ES fibers. These relative “homogeneous” ES fibers present efficient deep-blue emission (PLQY

50%)

due to weak interchain aggregation. More interestingly

low fraction of planar (

) conformation appears in the uniform PODPF/PEO ES fibers

induced by the external traction force in ES processing. Meanwhile

PNDPF/PEO ES fibers present a highest sensitivity than those of other ES fibers

associated with the smallest diameter and large surface area. Finally

compared to PODPF/PVK fibers and PODPF/PEO amorphous ES fibers

PODPF/PEO ES fibers obtained from DCE solution exhibit an excellent quenching behavior toward a saturated DNT vapor

mainly due to the synergistic effect of small size

weak separation

-conformation formation and high deep-blue emission efficiency.

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