Synthesis of Perfluoroalkyl Gelators and Their Selective Gelation Ability for Fluorinated Solvents

2019 ◽  
Vol 92 (1) ◽  
pp. 97-104 ◽  
Author(s):  
Toshiaki Shimasaki ◽  
Yuki Ohno ◽  
Mao Tanaka ◽  
Masato Amano ◽  
Yuta Sasaki ◽  
...  
Keyword(s):  
Fluorinated Solvents

Towards new strategies for the synthesis of functional vinylidene fluoride-based copolymers with tunable wettability

2016 ◽  
Vol 7 (24) ◽  
pp. 4004-4015 ◽  
Author(s):  
Sanjib Banerjee ◽  
Thibaut Soulestin ◽  
Yogesh Patil ◽  
Vincent Ladmiral ◽  
Bruno Ameduri
Keyword(s):  
Oil Recovery ◽  
Water Purification ◽  
Potential Application ◽  
Vinylidene Fluoride ◽  
Water Based ◽  
Poly Vinylidene Fluoride ◽  
New Strategies ◽  
Fluorinated Solvents

–COOH functionalized poly(vinylidene fluoride) prepared using water-based non-fluorinated solvents displays tunable wettability suitable for potential application in coating, oil recovery and water purification.

scholarly journals Electrolyte Solutions for Rechargeable Li-Ion Batteries Based on Fluorinated Solvents

2020 ◽  
Vol 3 (8) ◽  
pp. 7485-7499
Author(s):  
Ortal Lavi ◽  
Shalom Luski ◽  
Netanel Shpigel ◽  
Chen Menachem ◽  
Zvika Pomerantz ◽  
...  
Keyword(s):  
Electrolyte Solutions ◽  
Li Ion Batteries ◽  
Li Ion ◽  
Fluorinated Solvents

Particulate Removal from Oxygen Systems Using Surfactant-Enhanced Fluorinated Solvents

1999 ◽  
pp. 351-372
Author(s):  
Gerard K. Newman ◽  
Jeffrey H. Harwell ◽  
Bijo Mathew ◽  
Greg Caudill ◽  
Christy Crowe ◽  
...  
Keyword(s):  
Particulate Removal ◽  
Fluorinated Solvents

ChemInform Abstract: Enhancement of Stereoselectivities in Asymmetric Synthesis Using Fluorinated Solvents, Auxiliaries, and Catalysts

ChemInform ◽  
2015 ◽  
Vol 46 (19) ◽  
pp. no-no
Author(s):  
Tsuyuka Sugiishi ◽  
Masato Matsugi ◽  
Hiromi Hamamoto ◽  
Hideki Amii
Keyword(s):  
Asymmetric Synthesis ◽  
Fluorinated Solvents

scholarly journals Effects of fluorinated solvents on electrolyte solvation structures and electrode/electrolyte interphases for lithium metal batteries

2021 ◽  
Vol 118 (9) ◽  
pp. e2020357118
Author(s):  
Xia Cao ◽  
Peiyuan Gao ◽  
Xiaodi Ren ◽  
Lianfeng Zou ◽  
Mark H. Engelhard ◽  
...  
Keyword(s):  
High Voltage ◽  
State Of The Art ◽  
Solvation Shell ◽  
High Concentration ◽  
Electrode Surfaces ◽  
Lithium Metal Batteries ◽  
Different Types ◽  
Fluorinated Ethers ◽  
Further Development ◽  
Fluorinated Solvents

Electrolyte is very critical to the performance of the high-voltage lithium (Li) metal battery (LMB), which is one of the most attractive candidates for the next-generation high-density energy-storage systems. Electrolyte formulation and structure determine the physical properties of the electrolytes and their interfacial chemistries on the electrode surfaces. Localized high-concentration electrolytes (LHCEs) outperform state-of-the-art carbonate electrolytes in many aspects in LMBs due to their unique solvation structures. Types of fluorinated cosolvents used in LHCEs are investigated here in searching for the most suitable diluent for high-concentration electrolytes (HCEs). Nonsolvating solvents (including fluorinated ethers, fluorinated borate, and fluorinated orthoformate) added in HCEs enable the formation of LHCEs with high-concentration solvation structures. However, low-solvating fluorinated carbonate will coordinate with Li+ ions and form a second solvation shell or a pseudo-LHCE which diminishes the benefits of LHCE. In addition, it is evident that the diluent has significant influence on the electrode/electrolyte interphases (EEIs) beyond retaining the high-concentration solvation structures. Diluent molecules surrounding the high-concentration clusters could accelerate or decelerate the anion decomposition through coparticipation of diluent decomposition in the EEI formation. The varied interphase features lead to significantly different battery performance. This study points out the importance of diluents and their synergetic effects with the conductive salt and the solvating solvent in designing LHCEs. These systematic comparisons and fundamental insights into LHCEs using different types of fluorinated solvents can guide further development of advanced electrolytes for high-voltage LMBs.

Synthesis and Characterization of Polymers: From Polymeric Micelles to Step-Growth Polymerizations

2004 ◽  
Author(s):  
Jennifer L. Young ◽  
Joseph M. DeSimone
Keyword(s):  
Carbon Dioxide ◽  
Organic Solvents ◽  
Polymeric Micelles ◽  
Environmental Benefits ◽  
Chemical Components ◽  
Voc Emissions ◽  
Heat Of Vaporization ◽  
Step Growth ◽  
Fluorinated Solvents

The benefits of using CO2 in polymer synthesis are numerous, ranging from environmental responsibility to improved materials properties. Carbon dioxide is an inert, nontoxic, nonflammable, and inexpensive reaction and processing medium that is an environmentally benign alternative to the organic solvents or water typically used today. Although the often toxic, carcinogenic, and environmentally hazardous organic solvents are recycled, some release to the environment is inevitable. Replacement of organic solvents with water still requires the costly purification of the wastewater prior to disposal and/or an energy-intensive drying process to remove the water. On the other hand, CO2 can be easily separated from other chemical components and recycled through depressurization and recompression. Although CO2 is a greenhouse gas, the CO2 used as a solvent does not contribute to the greenhouse gases since it is acquired from natural reservoirs or recovered as a by-product from other industrial chemical processes. The more specific environmental benefits of using liquid or supercritical carbon dioxide as a solvent vary depending on the polymerization being considered. The synthesis of fluoropolymers in CO2 is of particular interest since these polymers have historically been prepared in chlorofluorocarbons (CFCs) and other fluorinated solvents, as well as in water. Due to the association of CFCs with ozone-layer depletion, these solvents have been banned and replacement solvents must be found. Alternative fluorinated solvents are expensive and also have environmental concerns. In heterogeneous polymerizations, many polymer latexes produced by emulsion or dispersion polymerization in water or organic solvents can be produced in CO2. To eliminate volatile organic compound (VOC) emissions, more polymer latexes are being synthesized in water. However, for dry polymer applications, the latexes must undergo energy-intensive drying by vacuum or heat to remove the water. For polymer latexes produced in CO2, there are no VOC emissions and the energy-intensive drying step can be significantly reduced since the CO2 has a much lower heat of vaporization in the liquid state and, in fact, has a zero heat of vaporization in the supercritical state. Additionally, the polymer can be shipped dry at 100% solids, thus saving energy and money in shipping the heavy water latex.

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