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Journal of Energy Chemistry 2016年第3期25卷 472-480页

作者： Yan Dong Hulin Xu Fengyan Fu Changjin Zhu Department of Applied Chemistry Beijing Institute of Technology Beijing Qintian Science & Technology Development Co.

Several crosslinked proton exchange membranes with high proton conductivities and low methanol permeability coefficients were prepared, based on the sulfonated poly[(4-fluorophenoxy)(phenoxy)] phosphazene(SPFPP) and newly synthesized water soluble sulfonated poly(cyclophosphazene)(SPCP) containing clustered flexible pendant sulfonic acids. The structure of SPCP was characterized by fourier transform infrared spectroscopy(FTIR) and ~1H NMR spectra. The membranes showed moderate proton conductivities and much lower methanol permeability coefficients when compared to Nafion 117. Transmission electron microscopy(TEM) results indicated the well-defined phase separation between the locally and densely sulfonated units and hydrophobic units, which induced efficient proton conduction. In comparison with SPFPP membrane, the proton conductivities, oxidative stabilities and mechanical properties of crosslinked membranes remarkably were improved. The selectivity values of all the crosslinked membranes were also much higher than that of Nafion 117(0.74×10~5S· s/cm~3). These results suggested that the c SPFPP/SPCP membranes were promising candidate materials for proton exchange membrane in direct methanol fuel cells.

关键词： polyphosphazene Proton exchange membrane Phase separation Direct methanol fuel cell

Nano-silver-modified polyphosphazene nanoparticles with different morphologies:Design,synthesis,and evaluation of antibacterial activity

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Chinese Chemical Letters 2023年第12期34卷 433-439页

作者： Tairong Kuang Linbing Deng Sitao Shen Hongxia Deng Zhisen Shen Zhenjie Liu Zhengping Zhao Feng Chen Mingqiang Zhong Zhejiang Key Laboratoryof Plastic Modification and Processing Technology Collegeof Material Science and EngineeringZhejiang University of Technology Hangzhou 310014China Department of Otorhinolaryngology Head and Neck SurgeryThe Afiliated LiHuili HospitalNingbo UniversityNingbo 315040China Department of Vascular Surgery Second Afiliated Hospital of Zhejiang University School of MedicineHangzhou 310009China

Drug-resistant bacteria present a severe threat to public health,emphasizing the importance of developing broad-spectrum antibacterial agents that are free from drug *** silver-based antibacterial agents,nano-silver has been found to exhibit the most promising and comprehensive *** exploration of the antibacterial capacity and morphological changes of silver nanoparticles(AgNPs)could offer a starting point for the development of safe and efficient antibacterial *** this study,three types of nano-silver-modified polyphosphazene(PRV)nanoparticles with different morphologies were synthesized using precipitation *** nanoparticles were characterized using various techniques,including Fourier-transform infrared spectroscopy(FTIR),X-ray diffraction(XRD),scanning electron microscopy(SEM),transmission electron microscopy(TEM),and thermogravimetric analysis(TGA).The antibacterial activity of these nanoparticles against Escherichia coli(***)and Staphylococcus aureus(***)was assessed using minimum inhibitory concentration(MiC)/minimum bactericidal concentration(MBC)tests and inverted fluorescence *** results revealed that the antibacterial activity of silver nanoparticles can vary significantly depending on their immobilized ***@PRV Strawberry-like nanoparticles(NPs)exhibited higher antibacterial activity compared to Ag@PRV Yolk-Shell NPs and Ag@PRV Cable-like nanofibers(NFs).Notably,all three types of synthesized nanoparticles demonstrated a stronger bactericidal effect on Gram-positive bacteria than Gram-negative ***/dead bacterial staining and scanning electron microscopy demonstrated that silver can kill bacteria by altering the permeability of their cell *** findings offer valuable insights for designing and practically applying new silver-based antibacterial agents in the future.

关键词： Nano-silver polyphosphazene Morphology change Antibacterial activity Antibacterial mechanism

Synthesis of magnetic polyphosphazene-Ag composite particles as surface enhanced Raman spectroscopy substrates for the detection of melamine

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Chinese Chemical Letters 2019年第12期30卷 2009-2012页

作者： Ci Huang Feifei Lu Ke Xu Guanjun Ding Lijun You Jiabin Wang Qiqing Zhang Institute of Biomedical and Pharmaceutical Technology College of Chemistry Fuzhou University

Magnetic polyphosphazene(MPZS) particles coated by Ag nanoparticles(MPZS-Ag) have been developed as surface enhanced Raman spectroscopy(SERS) substrates for sensitive detection of melamine in aqueous solutions and milk samples.5,5’-Dithiobis-(2-nitrobenzoic acid)(DTNB) was used as model analyte to test the SERS activity of the MPZS-Ag *** prepared MPZS-Ag particles possess both magnetic responsiveness and excellent SERS *** detection of different concentrations of melamine aqueous solutions and spiked milk samples were performed by the MPZS-Ag *** limit of detection(LOD) of the melamine in aqueous solutions was 10^-7 mol/L(0.0126 mg/L) and 0.6 mg/L in real milk samples using the MPZS-Ag particles as SERS *** LOD of the melamine are much lower than the safety values of Food and Drug Administration and Codex Alimentarius *** results indicate that the MPZS-Ag particles have promising application prospect for SERS analysis in food safety fields.

关键词： polyphosphazene Magnetic polymer particles Surface enhanced Raman spectroscopy Ag nanoparticles Melamine detection

Synthesis and characterization of a new organic-inorganic hybrid polyphosphazene polymer

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Science China Chemistry 2008年第1期51卷 46-50页

作者： HUANG XiaoBin YIN Lin TANG XiaoZhen School of Chemistry and Chemical Technology Shanghai Jiaotong UniversityShanghai 200240China

A new organic-inorganic hybrid polyphosphazene polymer was synthesized via sequential nucleophilic substitution using allylamine and phenol. The polymer was characterized by FTIR, 1H-NMR, and 31P-NMR spectra. The thermal properties were studied by DSC and TGA. It was found that the polymer has good thermal stability. Char yields of the polymer reaches to 48.6% at 800 ℃. The high char yield makes it possible in theory for the polymer to be used as flame retardant. By cross linking, the thermal stability of the polymer could be improved further.

关键词： polyphosphazene allylamine phenol mixed-substituent

Amphiphilic polyphosphazene with Poly(ethylene oxide) Side Chains Prepared through the Decker-Forster Reaction

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Journal of Wuhan University of Technology(Materials Science) 2006年第2期21卷 56-60页

作者：刘承美 Department of Chemistry Huazhong University of Science and TechnologyWuhan 430074China

Poly （4- methylphenoxyphosphnzene ） -graft-poly （ ethylene oxide ）（ PPZ-g- PEO ）, a novel amphiphilie grafting polymer was prepared via the Decker-Forster reaction. It is found that the graft efficiency increased with extension of reaction time. Low molecular weight of poly （ ethylene oxide ） favored the grafting reaction. The grafted polymer has two different glass transition temperatures（ Tg） with those of pure poly（ 4-methyl- phenoxy-phopsphazene ） and PEO. The emulsifying ability of grafted polymer was studied with benzene-water mixtare. The emulsifying volumes increased with the decreasing of PEO＇ s molecular weight. The contact angle of film forming from grafted polymer decreased after introduction of PEO grafting chain.

关键词： amphiphilic polymer polyphosphazene poly ( ethylene oxide ) grafting polymer Decker-Forster reaction

A New Synthetic Strategy to Prepare a polyphosphazene with Charge-Transporting Agents and Nonlinear Optical Chromophores as Side Chains

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Chinese Journal of Chemistry 2003年第10期21卷 1395-1399页

作者：李振秦金贵李绍军叶成 Department of Chemistry Center for Molecular Science

A new strategy, a post coupling method to develop the polyphosphazene (P2) functionalized with carbazolyl groups and nonlinear optical (NLO) chromophores, has been explored. P2 exhibits good solubility in common organic solvents. The poled film of P2 exhibits a resonant d 33 value of 42 pm/V by second harmonic generation (SHG) measurements.

关键词： post coupling method polyphosphazene synthesis

Synthesis and Nonlinear Optical Property of a polyphosphazene with High Glass Transition Temperature

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Chinese Chemical Letters 2004年第4期15卷 489-491页

作者： ZhenLI JinGuiQIN ZhouYANG ChengYE DepartmentofChemistry WuhanUniversityWuhan430072 CenterforMolecularScience OrganicSolidsLab.InstituteofChemistryTheChineseAcademyofScienceBeijing100080

A new polyphosphazene containing binaphtholyl and indole azo chromophores as side chains with high glass transition temperature ( Tg ) was synthesized by a post-functional method. The polymer was well characterized. Its Tg was tested to be 168℃, and the poled film of P2 reveals a resonant d33 value of 20 pm/V by second harmonic generation ( SHG ) measurements.

关键词： polyphosphazene synthesis SHG.

Synthesis of polyphosphazene with Pendent Perfluorobutylsulfonylimide Group

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Chinese Journal of Chemistry 2006年第1期24卷 9-12页

作者：张正波王新增聂进 Department of Chemistry Huazhong University of Science and Technology Wuhan Hubei 430074 China

A new polyphosphazene with perfluorobutylsulfonylimide as a pendent group has been prepared. The structure of the polymer and its properties were characterized by 1^H NMR, 19^F NMR, IR spectra, gel permeation chromato... 详细信息

关键词： polyphosphazene perfluorobutylsulfonylimide synthesis acidic polymer

Synthesis and characterization of polyphosphazene with coumarin as side group

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Synthesis and characterization of polyphosphazene with couma...

Synthesis of Organic-Inorganic Hybrid Aluminum Hypophosphite Microspheres Flame Retardant and Its Flame Retardant Research on Thermoplastic Polyurethane

2005年全国高分子学术论文报告会

作者： Cheng-mei Liu, Jin-jun Qiu, Rui Bao, Cheng Zhao, Xiao-Ju Chen, Yan Xu, Yun Zhou 华中科技大学化学系

＜正＞A novel coumarin-containing photo-crosslinking poly（organophosphazene）was prepared and its photodimerization characteristics were studied in this ***-containing Polymer was synthesized from polymeric substitut... 详细信息

关键词： polyphosphazene coumarin Photocuring Characteristics

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Journal of Wuhan University of Technology(Materials Science) 2024年第1期39卷 221-233页

作者：刘生鹏 XU Zhi ZHANG Xinyuan WEI Huan XIONG Yun DING Yigang HUANG Wenbo 许莉莉 Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education Key Laboratory for Green Chemical Process of Ministry of EducationSchool of Chemical Engineering and PharmacyWuhan Institute of TechnologyWuhan 430205China Hubei Three Gorges Laboratory Yichang 443007China School of Technology Materials Science and Engineering Wuhan Institute of TechnologyWuhan 430205China

Aluminum hypophosphite microspheres(AHP) were synthesized by hydrothermal method using NaH2PO2·H2O and AlCl3·6H2O as raw materials, and then the AHP microspheres were polymerized by surface polymerization of micro-nanospheres with cyclic cross-linked poly(cyclotriphosphazene-co-4,4'-sulfonyldiphenol)(PZS). A new organic-inorganic poly(phosphonitrile)-modified aluminum hypophosphite microspheres(PZS-AHP) were synthesized by encapsulation and applied to flame retardant thermoplastic polyurethane(TPU). The microstructure and chemical composition of the PZS-AHP microsphere were characterized by scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectroscopy and X-ray spectroscopy. The thermal stability of PZS-AHP microsphere was explored with thermogravimetric analysis. Thermogravimetric data indicate that the PZS-AHP microspheres have excellent thermal stability. The thermal and flame-retarding properties of the TPU composites were evaluated by thermogravimetric(TG), limited oxygen index tests(LOI), and cone calorimeter test(CCT). The TPU composite achieved vertical burning(UL-94) V-0 grade and LOI value reached 29.2% when 10 wt% PZS-AHP was incorporated. Compared with those of pure TPU, the peak heat release rate(pHRR) and total heat release(THR) of TPU/10%PZS-AHP decreased by 82.2% and 42.5%, respectively. The results of CCT indicated that PZS-AHP microsphere could improve the flame retardancy of TPU composites.

关键词： polyphosphazene thermoplastic polyurethane flame retardancy aluminum hypophosphite surface polymerization