Publications by authors named "Yunrui Xie"

3 Publications

  • Page 1 of 1

Novel photosensitive dual-anisotropic conductive Janus film endued with magnetic-luminescent properties and derivative 3D structures.

J Colloid Interface Sci 2021 Nov 26;601:899-914. Epub 2021 May 26.

Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China.

A new photosensitive dual-anisotropic conductive Janus film (PDCJF) is proposed for the first time. It is rationally designed and manufactured by facile electrospinning. PDCJF is firstly constructed using 2,7-dibromo-9-fluorenone (DBF) with photoconductive and luminescent properties. Janus nanofibers are respectively used as the building units to construct the top layer (T-PDCJF) and the bottom layer (B-PDCJF) of PDCJF. The two layers are tightly bonded to form PDCJF. Under light irradiation, there is photosensitive dual-anisotropic conduction in PDCJF, but there is no anisotropic conduction without light. Thus, the transition of PDCJF from mono-functional magnetism to tri-functionalities is realized under light and without light. The luminescence color of PDCJF is tunable and it emits white-light. This is made possible by modulating the amounts of luminescent substances and excitation wavelength. The microscopic Janus nanofibers used as building units and macroscopic Janus film structure ensure high photosensitive dual-anisotropic conduction and excellent fluorescence in PDCJF. The two-dimensional (2D) PDCJF is rolled to obtain three-dimensional (3D) Janus-type tubes and 2D plus 3D complete flag-like structures with exceptional multi-functionalities. The new findings can strongly guide in developing advanced multi-functional nanostructures.
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http://dx.doi.org/10.1016/j.jcis.2021.05.141DOI Listing
November 2021

Preparation and Properties of Novel Cross-Linked Fluorinated Poly(aryl ether) with Low Dielectric Constant and High Thermal Stability.

Macromol Rapid Commun 2020 Dec 27;41(24):e2000100. Epub 2020 May 27.

National and Local Joint Engineering Laboratory for Synthetic Technology of High-Performance Polymers, Jilin University, 2699 Qianjin Street, Changchun, 130012, China.

Fluorinated poly(aryl ether)s (FPAEs) have attracted much attention due to their high thermal stability, excellent mechanical strength, and low dielectric constant. High-molecular-weight fluorinated poly(aryl ether) containing phenylethynyl (FPAE-PE) is successfully synthesized by nucleophilic substitution between 3-ethynylphenol and FPAE. The cross-linked fluorinated poly(aryl ether) (C-FPAE-PE) is prepared by thermal treatment of FPAE-PE at 300 °C. The thermal stability, dynamic thermomechanical property, and dielectric performance of C-FPAE-PE are systematically studied. C-FPAE-PE has excellent heat resistance with 5% weight loss temperature (T ) at 490 °C in air and high thermomechanical properties with storage modulus retention of 50% at 215 °C. C-FPAE-PE displays low and steady dielectric constant of 2.4 and dielectric loss of 0.004 at 215 °C, exhibiting potential applications in the field of microelectronics, communication technology, and energy storage as high-temperature low dielectric materials.
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http://dx.doi.org/10.1002/marc.202000100DOI Listing
December 2020

Utilizing modules of different functions to construct a Janus-type membrane and derivative 3D Janus-type tube displaying synchronous trifunction of conductive aeolotropism, magnetism and luminescence.

Nanotechnology 2019 Oct;30(43):435602

Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology, 130022 Changchun, People's Republic of China.

The microstructures and macrostructures play a crucial role in the properties and applications of multifunctional materials. Herein, microscopic partition and macroscopic partition are combined by devising and preparing different modules that can be elaborately devised to possess specific performances. A two-dimensional (2D) 3-module Janus-type membrane multifunctionalized by conductive aeolotropism, magnetism and luminescence (defined as 3M-CML Janus-type membrane) is constructed via electro-spinning. The modular structure of 3M-CML Janus-type membrane is obtained by devising and constructing three different modules, including luminescence module (denoted as L module), conductive aeolotropism-luminescence module (marked as C-L module) and magnetism-luminescence module (named as M-L module). The results prove that almost no mutual detrimental influences exist among different modules owing to the macroscopic modular structure and Janus-type structure, which effectively avoids the negative interactions among different materials. Tb(BA)phen/PVP nanofiber, [PMMA/Eu(BA)phen]//[PMMA/PANI] Janus-type nanoribbon and [PMMA/Tb(BA)phen]//[PMMA/FeO] Janus-type nanoribbon are, respectively, selected as building units of the three modules, which further prevents the negative interactions among different materials and improves the versatility of 3M-CML Janus-type membrane. The luminescence, adjustable conductive aeolotropism and variable magnetism of 3M-CML Janus-type membrane are systematically discussed. Meanwhile, novel flexible four types of brand-new three-dimensional (3D) Janus-type tubes are obtained by rolling modularly devised 2D 3M-CML Janus-type membrane with different rolling schemes. As derivatives of the 2D 3M-CML Janus-type membranes, macroscopic 3D Janus-types tubes exhibit similar performances to 2D 3M-CML Janus-type membranes. The 2D Janus-type membrane and 3D Janus-type tube will have momentous applications in flexible electronics and nanodevices in the future.
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http://dx.doi.org/10.1088/1361-6528/ab3386DOI Listing
October 2019
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