Xuanxi Leng

University of Science and Technology of China

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Jinzhi Zhang

Qingdao Institute of Bioenergy and Bioprocess Technology

Hongping Xiang

Tongji University

Yixue Jiang

West China Hospital of Sichuan University

Zihao Wen

South China University of Technology

Liqun Zhou

Hubei University

Yongqian Nie

Hubei University

Qichao Zou

Hubei University

Xiaoguang Liu

State Key Laboratory of Pollution Control and Resource Reuse

Hai‐Bing Xu

Ningbo Institute of Industrial Technology

Shigan Chai

Hubei University

Cooperative Institutions

Hubei University

Chinese Academy of Sciences

University of Science and Technology of China

University of Chinese Academy of Sciences

Zhejiang University

Shandong University

Hefei National Center for Physical Sciences at Nanoscale

Ministry of Education of the People's Republic of China

Zhejiang University of Technology

Collaborative Innovation Center of Chemistry for Energy Materials

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Fitted peaks data of O2−–V5+ charge transfer bands and R/O data of Eu3+ doped Ca(VO3)2 and Ca3(VO4)2

Data in Brief (2018)

Ling Li Yu Pan Wenjun Wang Zihao Wen Xuanxi Leng

Data presented in this article are related to the research article entitledO2--V5+charge transfer band, chemical bond parameters and R/O of Eu3+doped Ca(VO3)2and Ca3(VO4)2: A comparable study[ing Li, Yu Pan, Wenjun Wang, Zihao Wen, Xuanxi Leng, Qi Wang, Liqun Zhou, Haibing Xu, Qinghua Xia, Li Liu, Hongping Xian, Xiaoguang Liu]. The data present the fitting results of the broad excitation spectra of Ca(VO3)2:1%Eu and Ca3(VO4)2:1%Eu using the Gaussian model, the O/R values using the experimental PL emission results. The data compares the optimized cell parameters for Ca(VO3)2: 1%Eu and Ca3(VO4)2:1%Eu through the CASTEP geometry optimization with their initial cell parameters.

CASTEP

10.1016/j.dib.2018.01.087

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O2−-V5+ charge transfer band, chemical bond parameters and R/O of Eu3+ doped Ca(VO3)2 and Ca3(VO4)2: A comparable study

Journal of Alloys and Compounds (2017)

Ling Li Yu Pan Wenjun Wang Wenying Zhang Zihao Wen

10.1016/j.jallcom.2017.07.284

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Citations (15)

Influence of reactive POSS and DDP on thermal stability and flame retardance of UPR nanocomposites

e-Polymers (2017)

Yongqian Nie Xuanxi Leng Yixue Jiang Shigan Chai Jinzhi Zhang

Abstract Unsaturated polyester resins (UPR) were prepared by the melt condensation method based on adipic acid, o-phthalic anhydride, maleic anhydride and ethylene glycol in the presence of PSS-(2,3-propanediol)propoxy-heptaisobutyl substituted (PSS-POSS) or/and 9 wt% [(6-oxide-6H-dibenz(c,e)(1,2)oxaphosphorin-6-yl)methyl]butanedioic (DDP). We synthesized UPR containing DDP (DDP-UPR) and UPR containing both DDP and PSS-POSS (DDP-PSS-POSS-UPR series). The chemical structures of the modified polyesters were characterized and confirmed by Fourier transform infrared (FTIR) and 31 P nuclear magnetic resonance ( 31 P NMR). The thermal stability and flammability behaviors of UPR were evaluated by thermogravimetric analysis (TGA) and limited oxygen index (LOI) and the vertical burning test. The morphology of residual char of UPR was shown by scanning electron microscopy (SEM). The results indicate that the incorporation of PSS-POSS has little influence on the thermal stability of DDP-UPR, but enhances the flame retardance of DDP-UPR, and when the PSS-POSS content reaches 10 wt%, the DDP-PSS-POSS-UPR has better flame retardance.

Thermal Stability

Thermogravimetric analysis

Phthalic anhydride

Succinic anhydride

Maleic anhydride

10.1515/epoly-2016-0316

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Synthesis of Polypeptides with High-Fidelity Terminal Functionalities under NCA Monomer-Starved Conditions

Research (2021)

P. R. Li Jie Cen Wenhao Pan Yuben Zhang Xuanxi Leng

Controlled polypeptide synthesis via α -amino acid N -carboxylic anhydride (NCA) polymerization using conventional primary amine initiators encounters two major obstacles: (i) normal amine mechanism (NAM) and activated monomer mechanism (AMM) coexist due to amine basicity and nucleophilicity and (ii) NCA is notoriously sensitive towards moisture and heat and unstable upon storage. We serendipitously discover that N -phenoxycarbonyl-functionalized α -amino acid (NPCA), a latent NCA precursor, could be polymerized solely based on NAM with high initiating efficiency by using primary amine hydrochloride as an initiator. The polymerization affords well-defined polypeptides with narrow polydispersity and high-fidelity terminal functionalities, as revealed by the clean set of MALDI-TOF MS patterns. We further demonstrate successful syntheses of random and block copolypeptides, even under open-vessel conditions. Overall, the integration of moisture-insensitive and air-tolerant NPCA precursors with stable primary amine hydrochloride initiators represents a general strategy for controlled synthesis of high-fidelity polypeptides with sophisticated functions.

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Hydrochloride

10.34133/2021/9826046

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Influence of reactive POSS and DDP on thermal stability and flame retardance of UPR nanocomposites

nano Online (2018)

Yongqian Nie Xuanxi Leng Yixue Jiang Shigan Chai Jinzhi Zhang

Thermal Stability

10.1515/nano.0013.00113

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