Dehydrofluorination翻译
WebAug 15, 2011 · For the first time, dehydrochlorination and dehydrofluorination reactions are studied on the same substrate, 3-chloro-1,1,1,3-tetrafluorobutane, employing nanoscopic metal fluorides AlF 3, MgF 2, CaF 2, SrF 2, and BaF 2 as catalysts that are prepared according the fluorolytic sol–gel synthesis. AlF 3 is exclusively selective toward … WebSep 1, 2024 · Dehydrofluorination mechanism, structure and thermal stability of pure fluoroelastomer in alkaline environment were systematic researched. The structures of … This study evaluates the dehydrofluorination mechanism, … Fluorinated polymers are particularly interesting and attractive compounds … PVdF film samples (25, 50 and 100 μm in thickness) were mounted in … ELSEVIER Journal of Fluorine Chemistry 77 (1996) 117-126 Fluoroolefin … The synthesis of 2H-nonafluoropentene (3) from HFP dimer may be accomplished … This is known to actively participate in dehydrofluorination reactions on heating … Changes in the 3300–3000 cm −1 region are mainly attributed to the complex … After precipitation from pentane (or water) and filtration, the homopolymers thus … The reaction products of vinylidenefluoride (VDF) with methanol as a telogen have …
Dehydrofluorination翻译
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Webdehydrofluorination translation in English - German Reverso dictionary, see also 'dehydrate',dehydrated',decarbonization',desulfurization', examples, definition, … WebFeb 20, 2024 · In addition to the investigation on PET hydrolysis, the effects of the alkaline solution on PVDF were analyzed. Generally, PVDF is highly resistant to both acidic and alkaline conditions; however, in highly alkaline solutions, PVDF deteriorates via dehydrofluorination and C–C double bond formation [33,34,35,36,37,38]. Therefore, …
Webdehydrofluorination translation in English - English Reverso dictionary, see also 'dehydrogenization',dehydrogenation',dehydroretinol',dehydrogenate', examples ... Webdehydrofluorination translation in English - English Reverso dictionary, see also 'dehydrogenization',dehydrogenation',dehydroretinol',dehydrogenate', examples, …
WebSecondly, a novel dehydrofluorination method is developed and optimized in this work to induce the discussed molecular defects into PVDF in order to promote β-phase formation without mechanical drawing. It is demonstrated that after chemical modification by the developed method, PVDF with β-phase fraction of over 80% can be directly produced ... WebSep 15, 2024 · With the synergistic effect of the dehydrofluorination reaction and applied high voltage electric field, the piezoelectric and energy storage properties of fibrous membranes attained great improvement. It was found that the simultaneous introduction of conjugated double bonds to the backbone of PVDF which was accompanied with the …
Web4b: R = Ph) cations. Catalytic dehydrofluorination reactions were observed for the C–F bond activation of fluoroalkanes when using germanes as hydrogen source. Fluorinated compounds play an important role in everyday life in terms of agrochemicals, pharmaceuticals, liquid crystals and cooling agents.1 Catalytic C–F activation reactions to ...
Web氟氯烃（CFCs）在大气环境科学、气候变化研究方面一直受到广泛的关注，从二十世纪70年代开始，氟氯烃在示踪海洋水系结构、洋流水团运动及其相互作用、水团年龄、海气交换过程的研究价值日益显著。20世纪80年代后期，CFCs的生产达到了高峰，在对其实行控制之前，全世界向大气中排放的氟氯烃 ... homepop foot stoolsWebHydrofluorocarbons (HFCs) which are usually potent greenhouse gases are regulated by the Montreal Protocol and its amendments, especially the recent Kigali Amendment. Dehydrofluorination of HFCs is an efficient route for the conversion of these greenhouse gases to value added and environmentally benign chemi homepop modern sherpa accent chairWebCatalytic dehydrofluorination of 1,1,1,2,3-pentafluoropropane (HFC-245eb) to 2,3,3,3-tetrafluoropropene (HFO-1234yf) using in-situ fluorinated chromium oxyfluoride catalyst. Seoyeon Lim, Min Soo Kim, Jae Wook Choi, Honggon Kim, Byoung Sung Ahn, Sang Deuk Lee, Hyunjoo Lee, Chang Soo Kim, Dong Jin Suh, Jeong Myeong Ha, … homepop home decor ottomanWebThe effect of dehydrofluorination reaction on the morphology and crystalline structure of PVDF fibers was investigated by scanning electron microscopy (SEM), X-ray diffraction … homepop layla tufted benchWebMay 13, 2024 · The dehydrofluorinated PVDF exhibits improved electromechanical coupling with a high piezoelectric strain coefficient of d31 = 25.12 ± 1.13 pC/N, which can be further improved to 35.12 ± 0.69 pC/N by common mechanical drawing. This high piezoelectric voltage coefficient leads to an excellent actuation and energy harvesting behavior with a ... hint button htmlWeb氟氯烃(Chlorofluorocarbon, CFC)化学示踪是海洋水团结构及其相互作用研究的有效工具,在世界大洋环流实验海洋计划中被列为常规测定项目。本研究以CFC作为示踪物对北冰洋、白令海以及南海南部海域的水团年龄及水体运移进行了研究。主要研究结果如下：1.根据对北冰洋、白令海及南海南部表层海水中 ... homepop ottomans targethttp://www.ichacha.net/脱氟.html homepop modern barrel accent chair flax brown