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Wang Danbo Guo Guangming Chen Renzeng Gong Yuzhen Sun Lishui Zhao Yingjie 《中国科学:化学(英文版)》2021,64(9):1510-1514
Two charge-transfer single crystals induced by donor-acceptor interactions were obtained. The presence of different solvent molecules led to 1D(linear) or 2D self-assembly modes. More interestingly, the 2 D organic framework, a layer-by-layer 2D organic framework single crystal, showed a stronger charge-transfer effect than the 1D cocrystal. 相似文献
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SHI Linmei XIONG Chunhua ** MO Jianjun College of professional Technology Lishui Normality Speciality Lishui Zhejiang China College of Food Science Biotechnology & Environmental Engineering Hangzhou University of Commerce Hangzhou China Department of Chemistry Lishui Teachers College Lishui Zhejiang China 《Chinese Journal of Reactive Polymers》2003,(1)
1.INTRODUCTIONThesynthesis,characterizationandsorptionpropertyofpolymericmaterialshavebeenstudiedbytheauthorsandotherresearchersinrecentyears[1~9].Diglycolamidicacidresin(DAAR)isanovelpolymericmaterialwhichcontainsafunctionalgroup[-N(CH2COOH)2].Itnotonlypossessesprotonthatcanexchangewithcation,butalsooxygenatomsthatcancoordinatedirectlywithmetalions.SoDAARcanbewidelyusedinthesorptionofmetalions.Inthisarticle,thesorptionpropertiesofDAARforSm(III)wereinvestigated.Somebasicsorption… 相似文献
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Qingzhu Sun Qingyan Pan Yanqi Ban Hui Liu Chunyan Fan Prof. Dr. Lishui Sun Prof. Dr. Yingjie Zhao 《Chemistry (Weinheim an der Bergstrasse, Germany)》2021,27(11):3661-3664
Two-dimensional polymers (2DPs) have attracted much interest due to their unique 2D atomic-thick covalent network with periodically linked monomers. The preparation of mono- or few-layered 2DPs with highly ordered structures is still a big challenge. Herein, we report a preparation of ultrathin 2DP film based on photo-triggered [2+2] cycloaddition at the air/water interface. The pre-assembly process induced by the D–A interactions before the polymerization plays a key role in constructing the highly ordered structure. The precise structure and chemical compositions of the continuous 2DP films were proved by selected area electron diffraction (SAED), Tip-Enhanced Raman Spectroscopy (TERS) and molecular-mechanics-based structural simulation. 相似文献
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采用阴离子溶液聚合法合成了低分子量3,4-聚异戊二烯(LPI), 并对其进行改性, 制备了硅氧烷改性的低分子量3,4-聚异戊二烯(MLPI), 将其应用于白炭黑补强的溶聚丁苯橡胶(SSBR)复合材料, 探究了端基改性物LPI-丙基甲基二甲氧基硅烷(LPI-CMDS)、 LPI-丙基三甲氧基硅烷(LPI-CTMS)、 LPI-丙基三乙氧基硅烷(LPI-CTES)和接枝改性物3-巯丙基三乙氧基硅烷接枝改性LPI(LPI-g-MTS)对SSBR复合材料中白炭黑的分散以及硫化胶性能的影响. 混炼胶的应变扫描和结合胶含量分析结果表明, MLPI增强了填料与聚合物之间的相互作用, 改善了白炭黑在复合材料中的分散, 其中LPI-g-MTS因活性位点多, 效果最佳; 与填充LPI的复合材料相比, 硫化胶的物理机械性能, 尤其是填充LPI-g-MTS后硫化胶的300%定伸应力和拉伸强度分别提升了89.66%和27.15%, 这为改善白炭黑在非极性橡胶中的分散提供了一条新途径. 相似文献
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WANG Li-jin YUAN Yan-qin GUO Sheng-rong College of Chemistry Life Science Lishui University Lishui P. R. China 《高等学校化学研究》2011,(3):417-421
A fast and convenient C―S bond formation reaction was achieved catalyzed by CuI/L-proline in aqueous two-phase system providing a simple method for synthesis of aryl sulfides in good yields in short time. 相似文献
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Lishui Sun Yongtao Qu Shaoxiang Li 《Journal of Thermal Analysis and Calorimetry》2013,111(2):1099-1106
Co-microencapsulated ammonium polyphosphate (APP) and pentaerythritol (PER) [M (A&P)] is prepared using melamine–formaldehyde resin by in situ polymerization method and characterized using energy dispersive spectrometer and Fourier transform infrared spectra. Thermal stability and fire resistance behavior have been analyzed and compared. The co-microencapsulation of APP and PER leads to a great improvement of its thermal stability investigated by thermogravimetric analysis. The temperature of maximum mass loss rate of M (A&P) is 30 °C higher than that of APP/PER mixture. The flame-retardant effect of M (A&P) in coating composite is evaluated by carbonization volume, flame spread rate, and cone calorimeter. Results show that the flame-retardant properties of M (A&P) in coating composite is much better than that of APP/PER mixture coating composite. 相似文献
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Co-microencapsulated ammonium polyphosphate (APP) and pentaerythritol (PER) (M (A&P)) is prepared using melamine-formaldehyde (MF) resin by in situ polymerization method, and characterized by Energy dispersive spectrometer (EDS) and Fourier transform infrared (FTIR) spectra. Thermal stability of M (A&P) has been analyzed and compared with APP/PER mixture. In air atmosphere, the mass loss of M (A&P) at different heating rates was investigated using TGA. The kinetics of thermal degradation and activation energy was described using Flynn-Wall-Ozawa and Kissinger methods. It showed that there were two degradation stages. Expanded carbon structure with honeycomb was formed in the first stage between 200 and 450 °C. The second stage was the oxidation of carbon with Ea as high as 151.7 kJ/mol, so the expanded carbon had a good thermal stability. The reaction order of thermal degradation was found to be 0.935, so the mechanism of M (A&P) thermal degradation was controlled by the process of random nuclear formation and growth. 相似文献
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