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- 저자 : Mingying Wang (검색결과 3 건)
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Min Xie,Jun Wang,Xu Wang,Mingying Yin,Ce Wang,Danming Chao,Xincai Liu 한국고분자학회 2016 Macromolecular Research Vol.24 No.11
In this work, electrospun poly(ether sulfone) (PES) nanofibrous membranes coated with hydrophilic polydopamine (PES-PDA) were successfully prepared. As a separator of lithium-ion batteries, the prepared PESPDA nanofibrous membrane shows ultrahigh porosity, due to the extra-large surface area of the nanofibers. Moreover, good thermostability of PES and polydopamine also results in the low shrinkage of the membrane under high temperature. As a result of the large number of amine groups and phenolic hydroxyl groups from the polydopamine, superior electrolyte wettability and high liquid electrolyte uptake capacity of the PES-PDA nanofibrous membrane have also been disclosed through comprehensive study, which would decrease the electrolyte absorption time and improve the performance of the battery. In the cell evaluation, an expected enhancement of cell performance with reduced polarization phenomenon and improved cycling stability is observed after coating with polydopamine, which certifies the validity of the polydopamine coating.
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NYanyan,Mingying Yin,Ying Yan,Ce Wang,Xincai Liu,Danming Chao 한국고분자학회 2017 Macromolecular Research Vol.25 No.12
Electrochromic materials have attracted much attention due to their potential in intelligent applications. We report here the preparation of a crosslinked electrochromic polyurea containing oligoanilines and silicon groups (PUOSi), which shows good thermostability and interesting spectral properties. The crosslinked network structure (c-PUOSi) could be accomplished easily by virtue of hydrolysis reaction. The reversible electrochemical activity and improved electrochromic behavior have been disclosed through multiple electrochemical techniques coupled with UV-Vis spectroscopy. The stability of c-PUOSi film in the electrochemical switching measurements has been effectively enhanced through the crosslinking reaction of triethoxysilane end groups, whilst the resulting densified electroactive film shows low response speed during the electrochemical process. Our demonstrated system presents a deep understanding of structure-function relationship, which is a vital implication for the fabrication and application of the electrochromic devices.
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Haonan Li,Baojia Sun,Mingying Wang,Xu Hu,Xiang Gao,Sheng-tao Xu,Yongnan Xu,Jin-yi Xu,Hui-Ming Hua,Da-Hong Li 대한약학회 2018 Archives of Pharmacal Research Vol.41 No.11
Diterpenoids are important and widely distributed natural compounds with various biological effects, including antitumor, anti-inflammatory and so on. Great efforts have been put in phytochemistry research on diterpenoids. A number of structural modified derivatives and pharmacophore incorporated hybrids were also designed and synthesized with promising therapeutic effects. Among the hopefuls, enmein-type 6,7-seco-ent-kaurane diterpenoids with unique ring system and stereogenic centers exhibit attractive activities. Based on their lead-like properties, enmein-type diterpenoids are suitable for further medicinal study. The derivatives were biologically evaluated and showed promising activities, which warranted in-depth research for further understanding. In this review, the natural bioactive enmein-type diterpenoids and the synthetic derivatives were comprehensively summarized.
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