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Chinese Journal of Polymer Science 2023年第11期41卷 1796-1804,I0010页

作者： Yu-Cai Lin Feng Chen Shou-Bin Yang Shu-Yue Gong Yu-Xiang Luo Fang-Fang Wei Fu-Chuan Ding Wei-Bin Bai Rong-Kun Jian fujian key laboratory of Polymer materials Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical EngineeringCollege of Chemistry and Materials ScienceFujian Normal UniversityFuzhou 350007China

Traditional silicone materials have poor mechanical properties,poor interfacial adhesion and lack the ability to be reprocessed or ***,we developed a novel strategy of incorporating dynamic noncovalent bonds(2-amino-4-hydroxy-6-methylpyrimidine(UPy))into side chain of silicone backbones to construct supramolecular silicone poly(urea-urethane)(SSPu)coatings with excellent mechanical performance,strong interfacial adhesion and multiple time recycling ***,the prepared SSPu is endowed with simultaneously enhanced stiffness(272.0±23.2 MPa)and toughness(8.0±2.0 MJ·m^(-3)).Besides,SSPu shows strong interfacial adhesion(up to 9.0±1.3 MPa)to diverse substrate(stainless steel,aluminum,copper,epoxy and glass)with long term ***,SSPu exhibits excellent multirecyclability and reusability without significantly decrease of its *** addition to the abovementioned features,the enrichment of siloxane backbones in the surface layer endows SSPu with robust repellency to water/*** strategy provides a powerful route to fabricate a new multifunctional silicone *** is highly anticipated that our strategy can effectively extend the service life of silicone coating which can be applied in a wide variety of areas including self-cleaning,antifouling.

关键词： Silicong coating Supramolecular Adhesion Recyclable

Ultrastable and colorful afterglow from organic luminophores in amorphous nanocomposites:advanced anti-counterfeiting and in vivo imaging application

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Nano Research 2020年第4期13卷 1035-1043页

作者： Qiuqin Huang Heqi Gao Shuming Yang Dan Ding Zhenghuan Lin Qidan Ling fujian key laboratory of Polymer materials College of Chemistry and Materials ScienceFujian Normal UniversityFuzhou 350007China State key laboratory of Medicinal chemical Biology Key Laboratory of Bioactive MaterialsMinistry of Educationand College of Life SciencesNankai UniversityTianjin 300071China fujian provincial key laboratory of advanced materials oriented chemical engineering Fuzhou 350007China

Special attention has been paid to the organic afterglow materials(OAM)for their fascinating ***,poor stability at air and complicated structure design hinder the development of ***,sol-gel,a facile and simple technique,is employed to synthesize a series of organic/inorganic hybrid nanocomposites(N1/SiO2,N2/SiO2,and N3/SiO2)by covalently linking three common aryl imides with crosslinked silica *** nanomaterials show excitation wavelength-dependent and colorful(yellow,red and green)afterglow of organic imides with long lifetime up to 1.1 s at ***,the ultralong phosphorescence is ultrastable under various conditions:water,high temperature,UV irradiation and in vivo,due to the protection of inorganic *** particularly,heating to 500℃does not quench the afterglow of organic luminophore in nanocomposites,but forms new ultralong phosphorescence originated from space-conjugation of silica and *** afterglow nanomaterials display huge advantages in the applications of advanced anti-counterfeiting and bioimaging.

关键词： phosphorescence afterglow sol-gel nanocomposite bioimaging

Circularly polarized luminescence based on cholesterol-tetraphenylethylene-perylene liquid crystal

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Chinese chemical Letters 2022年第5期33卷 2442-2446页

作者： Shengjie Jiang Shujuan Zhou Ying Chen Hongyu Guo Fafu Yang College of Chemistry and materials Science Fujian Normal UniversityFuzhou 350007China fujian key laboratory of Polymer materials Fuzhou 350007China fujian provincial key laboratory of advanced materials oriented chemical engineering Fuzhou 350007China

Perylene derivative with circularly polarized luminescence(CPL) at aggregated state was seldom reported due to the strong ACQ(aggregation-caused quench) effect at aggregation. In this work, a novel cholesterol-tetraphenylethylene-perylene derivative(TPE-P) was designed and synthesized in moderate yield. It exhibited liquid crystalline behavior with orderly hexagonal columnar mesophase and good fluorescence emission at long wavelength(600-700 nm) not only in solution but also at aggregated states based on the AIE(aggregation-induced emission)-FRET(fluorescence resonance energy transfer) effect between tetraphenylethylene unit and perylene moiety. Moreover, the circular dichroism(CD) and CPL studies suggested the effective chiral transfer from cholesterol unit to tetraphenylethylene unit and perylene skeleton due to the spiral liquid crystalline self-assembly. The CD and CPL signals showed the order of THF < THF-hexane < solid film < meosphase, indicating that the higher spiral orderly degree resulted in the stronger chiral transfer. The largest |glum| value for mesophase excited at 320 nm was as high as 1.5×10^(−2) based on the combining effect of AIE-FRET and chiral transfer. This research not only reported a novel CPL perylene derivative at aggregated state, but also confirmed that the combination of AIE-FRET effect and chiral transfer of liquid crytalline phase was an effective method to construct normal dye with excellent CPL property in aggregated state.

关键词： Tetraphenylethylene Perylene Circularly polarized luminescence Liquid crystal FRET

Unveiling inverse vulcanized polymers as metal-free,visible-light-driven photocatalysts for cross-coupling reactions

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Chinese chemical Letters 2024年第4期35卷 142-146页

作者： Lang Gao Cen Zhou Rui Wang Feng Lan Bohang An Xiaozhou Huang Xiao Zhang fujian key laboratory of Polymer Science Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical EngineeringCollege of Chemistry and Materials ScienceFujian Normal UniversityFuzhou 350007China fujian engineering and Research Center of New Chinese Lacquer materials College of Materials and Chemical EngineeringMinjiang UniversityFuzhou 350108China

Inverse vulcanized polymers(IVPs) that generated from elemental sulfur and smaller amounts of alkenes have found broad promising applications such as cathode materials for Li-S batteries, dynamic and repairable materials, optics applications, and metal sorption. However, their exploration in organic synthesis is still unprecedented. Here we first report the application of inverse vulcanized polymers in catalysis for organic transformations. A biomass-derived inverse vulcanized polymer(IVP-EAE) is found to be capable of catalyzing cross-coupling reactions in a transition-metal-free fashion under visible *** method allows the direct C–H functionalization of pyrroles and N-arylacrylamides with(hetero)aryl halides, respectively, leading to the formation of two sets of structurally important scaffolds including pyrrole-containing biaryls and 3,3-disubstituted oxindoles with high selectivity. We anticipate this study will not only unveil the new potential of IVPs, but also offer a distinct type of catalysts for organic transformations.

关键词： Cross coupling Inverse vulcanized polymers Metal free Photocatalyst Visible light

Facet effect on the reconstructed Cu-catalyzed electrochemical hydrogenation of 5-hydroxymethylfurfural(HMF) towards 2,5-bis(hydroxymethy)furan (BHMF)

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Journal of Energy Chemistry 2023年第9期84卷 101-111页

作者： Mengxia Li Tianxi Zheng Dongfei Lu Shiwei Dai Xin Chen Xinchen Pan Dibo Dong Rengui Weng Gang Xu Fanan Wang fujian provincial key laboratory of advanced materials oriented chemical engineering College of Chemistry and Material ScienceFujian Normal UniversityFuzhou 350007FujianChina fujian provincial key laboratory of Polymer materials College of Chemistry and Materials ScienceFujian Normal UniversityFuzhou 350007FujianChina fujian Eco-materials engineering Research Center School of Ecological Environment and Urban ConstructionFujian University of TechnologyFuzhou 350118FujianChina Institute of Smart Marine and engineering Fujian University of TechnologyFuzhou 350118FujianChina

The electrochemical hydrogenation of HMF to BHMF is an elegant alternative to the conventio nal thermocatalytic route for the production of high-value-added chemicals from biomass *** virtue of the wide potential window with promising Faradic efficiency(FE) towards BHMF,Cu-based electrode has been in the center of ***,its structure-activity relationship remains ambiguous and its intrinsic catalytic activity is still *** this work,we develop a two-step oxidation-reduction strategy to reconstruct the surface atom arrangement of the Cu foam(CF).By combination of multiple quasi-situ/in-situ techniques and density functional theory(DFT) calculation,the critical factor that governs the reaction is demonstrated to be facet effect of the metallic Cu crystal:Cu(110) facet accounts for the most favorable surface with enhanced chemisorption with reactants and selective production of BHMF,while Cu(100) facet might trigger the accumulation of the by-product 5,5'-bis(hydroxy methy)hydrofurion(BHH).With the optimized composition of the facets on the reconstructed Cu(OH)_(2)-ER/CF,the performance could be noticeably enhanced with a BHMF FE of 92.3% and HMF conversion of 98.5% at a potential of -0.15 V versus reversible hydrogen electrode(***) in 0.1 M KOH *** work sheds light on the incomplete mechanistic puzzle for Cu-catalyzed electrochemical hydrogenation of HMF to BHMF,and provides a theoretical foundation for further precise design of highly efficient catalytic electrodes.

关键词： Electrochemical hydrogenation Biomass conversion 5-hydroxymethylfurfural Cu electrode Facet effect

Effect of Crushed Air-cooled Blast Furnace Slag on Mechanical Properties of Concrete

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Journal of Wuhan University of Technology(materials Science) 2012年第4期27卷 758-762页

作者：王爱国邓敏 State key laboratory of materials-oriented chemical engineering College of Materials Science and EngineeringNanjing University of Technology Anhui key laboratory of advanced Building materials Anhui University of Architecture

Morphology characteristics of mix aggregates with crushed air-cooled blast furnace slag（SCR） and crushed limestone（LCR） with 5-20 mm and 20-40 mm gradation were represented by numerical parameters including angularity number（AN） and index of aggregate particle shape and texture（IAPST）.The effect of mix aggregates containing SCR on compressive strength and splitting tensile strength of concrete was *** characteristics of concrete,interfacial structure between aggregates and matrix were *** experimental results show that porous and rough SCR increases contact area with matrix in concrete,concave holes and micro-pores on the surface of SCR are filled by mortar and hydrated cement paste,which may increase interlocking and mechanical bond between aggregate and matrix in *** can be used to produce a high-strength concrete with better mechanical properties than corresponding concrete made with *** increase of AN and IAPST of aggregate may enhance mechanical properties of concrete.

关键词： crushed air-cooled blast furnace slag crushed limestone mechanical property morphology characteristic interfacial structure

Self-assembly of fibrous ZSM-5 zeolites in the presence of sodium alginate

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Particuology 2017年第4期15卷 55-62页

作者： Jinlong Jiang Shoupeng Ji Chuansong Duanmu Yichang Pan Jie wu Mei Wu Jing Chen Faculty of chemical engineering Key Laboratory for Palygorskite Science and Applied Technology offiangsu Province Huaiyin Institute of Technology Huaian 223003 China Jiangsu provincial engineering laboratory for advanced materials of Salt chemical Industry Huaiyin Institute of Technology Huaian 223003 China State key laboratory of materials-oriented chemical engineering Nanjing Tech University Nanjing 210009 China

ZSM-5 zeolites with a fibrous morphology were successfully self-assembled in the presence of sodium alginate. The effect of the sodium alginate concentration, Si/Al molar ratio in the synthesis gel, crystalliza- tion temperature and time, and the addition order of the sodium alginate on the morphology of the ZSM-5 zeolites was investigated. The possible formation mechanism of fibrous ZSM-5 zeolite crystals was also proposed. The results indicated that the carboxyl and hydroxyl groups of sodium alginate synergistically induced the self-stacking of ZSM-5 nanocrystals and thus the formation of the fibrous ZSM-5 zeolites. The Si/A1 molar ratio of the fibrous ZSM-5 zeolites could be adjusted by controlling the amount of the NaAIO2 additive; however, high Si/Al molar ratios also hindered the self-stacking ofZSM-5 nanocrystals. A high crystallization temperature （180℃）, a moderate sodium alginate concentration （8.33 g/L）, and the addition of sodium alginate prior to tetraethoxysilane were necessary for the formation of fibrous ZSM-5 zeolites.

关键词： Fibrous morphology Self-assembly Sodium alginate ZSM-5 zeolite

The First Hybrid Wells-Dawson-type Polytungstate Monosupported by Cd-coordination Complex via Di-bridging O-atom

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Chinese Journal of Structural Chemistry 2014年第10期33卷 1550-1559页

作者：陈武华张森胡志彪宓锦校 College of Chemistry and chemical engineering Xiamen University fujian provincial key laboratory of advanced materials Department of Materials Science and Engineering College of Materials Xiamen University College of Chemistry and Material Science Longyan University

Polyoxometalates（POMs） with Cd-coordination complexes acting as supporting units are rarely reported. The linkage of the supporting units with inorganic building block（polyanion） is generally established on terminal O-atoms, but scarcely via bridging O-atoms. By introducing liquid small organic molecule（pyridine, C5NH5） as assistant ＂structure-directing agent＂, we obtained a novel organic-inorganic hybrid polytungstate,（Hpy）4[Cd（phen）2（P2W18O62）]·nH2O（1, n ≈ 3, py = pyridine, phen = 1,10-phenanthroline）, under hydrothermal conditions. The single-crystal X-ray diffraction analysis shows that 1 is the first compound containing an asymmetric heteropolyanion, [Cd（phen）2（P2W18O62）]4–, a Wells-Dawson-type polyanion monosupported by Cd-coordination complex via di-bridging O-atoms.

关键词： hybrid compound Wells-Dawson-type Cd-coordination complex monosupported structure bi-bridging O-atom

Efficient homogenous catalysis of CO_(2) to generate cyclic carbonates by heterogenous and recyclable polypyrazoles

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Chinese Journal of chemical engineering 2022年第3期35卷 110-115页

作者： Zhen Lu Jie He Bogeng Guo Yulai Zhao Jingyu Cai Longqiang Xiao Linxi Hou Department of materials-oriented chemical engineering School of Chemical EngineeringFuzhou UniversityFuzhou 350116China Qingyuan Innovation laboratory Quanzhou 362801China fujian key laboratory of advanced Manufacturing Technology of Specialty chemicals Fuzhou UniversityFuzhou 350116China

The cycloaddition between CO_(2)and epoxides to produce cyclic carbonate is an attractive and efficiency pathway for the utilization of CO_(2)as C1 *** development of catalyst to mediate cycloaddition between CO_(2)and epoxides at low temperature and pressure is still a ***,a series of polypyrazoles with glass transition temperature(T_(g))in the range of 42.3-52.5℃ were synthesized and served as catalyst to mediate the cycloaddition of CO_(2)and epoxides by the assistant of tetrabutylammonium *** catalytic behaviors of polypyrazole on the model cycloaddition of CO_(2)to epichlorohydrin,including the reaction parameters optimization and versatility were investigated in detail,and excellent yield(99.9%)and selectivity(99%)were obtained under the optimized reaction conditions of70℃ and 1.0 MPa for 6.0 ***,the polypyrazole acts as homogeneous catalyst during reaction(higher than T_(g)).And under room temperature,polypyrazoles can be easily separated and recovered,which is a promising feature of a heterogeneous ***,the reaction mechanism was *** DFT calculation suggested that the formation of hydrogen bond between pyrazole and epoxide greatly reduced the energy barrier,which play an important role in promoting CO_(2)cycloaddition.

关键词： Carbon dioxide CO_(2)conversion Cyclic carbonate Heterogeneous catalysis Polypyrazole

Physical Properties of Crushed Air-cooled Blast Furnace Slag and Numerical Representation of Its Morphology Characteristics

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Journal of Wuhan University of Technology(materials Science) 2012年第5期27卷 973-978页

作者：王爱国邓敏 Anhui key laboratory of advanced Building materials Anhui University of Architecture State key laboratoryof materials-oriented chemical engineering College of Materials Science and EngineeringNanjing University of Technology

Physical properties and geometrical morphologies of crushed air-cooled blast furnace slag （SCR） and crushed limestone （LCR） were comparatively investigated. The shape, angularity, surface texture and internal pore structure of aggregate particles for different size and gradation were numerically represented by sphericity （ψ） and shape index （SI）, angularity number （AN）, index of aggregate particle shape and texture （IAPST）, porosity and pore size, respectively. The results show that SCR is a porous and rough aggregate. Apparent density, void, water absorption and smashing index of SCR are obviously higher than those of LCR with the same gradation, respectively. However, bulk density of SCR is lower than that of LCR with the same gradation. SI, AN, IAPST and porosity of SCR are obviously higher than those of LCR with the same gradation, respectively. The smaller particle size of SCR, the larger of its AN, IAPST and porosity.

关键词： crushed air-cooled blast furnace slag crushed limestone physical property morphology characteristic numerical representation