摘要:
The present invention provides a method for efficiently producing a sulfonic acid group-containing ether compound having a high purity and a good polymerizability while preventing production of a byproduct, and provides a sulfonic acid group-containing ether compound containing fewer impurities and having a good radical (co)polymerizability.The present invention provides a method of producing a sulfonic acid group-containing ether compound by reacting a sulfurous acid compound with a compound represented by the formula (1): wherein R1 represents a single bond, a CH2 group, or a CH2CH2 group, and R2 represents H, or a CH3 group, the method comprising the steps of: adjusting pH of a reaction system to 5.5 or greater with use of an alkaline substance; and adding the compound represented by the formula (1) to a reaction vessel containing the sulfurous acid compound.
摘要:
A solid polymer electrolyte material made of a copolymer comprising a repeating unit based on a fluoromonomer A which gives a polymer having an alicyclic structure in its main chain by radical polymerization, and a repeating unit based on a fluoromonomer B of the following formula (1): CF2═CF(Rf)jSO2X (1) wherein j is 0 or 1, X is a fluorine atom, a chlorine atom or OM {wherein M is a hydrogen atom, an alkali metal atom or a group of NR1R2R3R4 (wherein each of R1, R2, R3 and R4 which may be the same or different, is a hydrogen atom or a monovalent organic group)}, and Rf is a C1-20 polyfluoroalkylene group having a straight chain or branched structure which may contain ether oxygen atoms.
摘要翻译:一种由共聚物制成的固体聚合物电解质材料,该共聚物包含基于通过自由基聚合在主链中具有脂环结构的聚合物的基于含氟单体A的重复单元和基于下式(1)的含氟单体B的重复单元, :CF2 = CF(Rf)jSO2X(1)其中j为0或1,X为氟原子,氯原子或OM(其中M为氢原子,碱金属原子或NR1R2R3R4基团 R 1,R 2,R 3和R 4可以相同或不同,为氢原子或一价有机基团}},R f为可含有醚氧原子的具有直链或支链结构的C1-20多氟亚烷基。
摘要:
The present invention provides a method for efficiently producing a sulfonic acid group-containing ether compound having a high purity and a good polymerizability while preventing production of a byproduct, and provides a sulfonic acid group-containing ether compound containing fewer impurities and having a good radical (co)polymerizability.The present invention provides a method of producing a sulfonic acid group-containing ether compound by reacting a sulfurous acid compound with a compound represented by the formula (1): wherein R1 represents a single bond, a CH2 group, or a CH2CH2 group, and R2 represents H, or a CH3 group, the method comprising the steps of: adjusting pH of a reaction system to 5.5 or greater with use of an alkaline substance; and adding the compound represented by the formula (1) to a reaction vessel containing the sulfurous acid compound.
摘要翻译:本发明提供了一种有效地制备具有高纯度和良好的聚合性同时防止副产物生成的含磺酸基的醚化合物的方法,并且提供了含少量杂质和具有良好基团的含磺酸基的醚化合物 (共)聚合性。 本发明提供一种通过使亚硫酸化合物与式(1)表示的化合物反应制备含磺酸基醚化合物的方法:其中R1表示单键,CH2基或CH2CH2基,和 R 2表示H或CH 3基团,该方法包括以下步骤:使用碱性物质将反应体系的pH调节至5.5以上; 并将由式(1)表示的化合物加入到含有亚硫酸化合物的反应容器中。
摘要:
The present invention describes the synthesis of new fluorinated elastomers with very low glass transition temperatures (Tg), a good resistance to bases, gasoline and other carburants and good workability properties, these elastomers contain hexafluoropropene (HFP), perfluoro(4-methyl-3,6-dioxaoct-7-ene) sulfonyl fluoride (PFSO2F), vinylidene fluoride (VDF) and/or at least one fluorinated alkene and/or one vinyl perfluorinated ether. In a precise case, they are prepared by radical polymerisation of HFP and PFSO2F or by radical terpolymerisation HFP, PFSO2F and VDF in the presence of different organic initiator, such as peroxides, peresters or diazo compounds.
摘要:
A method for producing electrophoretic particles includes dispersing particles having a charge on the surfaces thereof in an polar dispersion medium; adding a first polymerizable surfactant including a first polar group having a polarity opposite to the charge of the surfaces of the particles, a hydrophobic group, and a polymerizable group to the polar dispersion medium and mixing the liquid; adding a second polymerizable surfactant including a second polar group, a hydrophobic group, and a polymerizable group to the polar dispersion medium and emulsifying the mixture; and adding a polymerization initiator to induce polymerization reaction, thereby preparing electrophoretic particles in which the particles are coated with an organic polymer. In the method, the charge polarity and the amount of charge of the electrophoretic particles are controlled by setting the polarity of the second polar group included in the second polymerizable surfactant, and at least one condition of the number of the second polar groups in second polymerizable surfactant, the valence of the second polymerizable surfactant, and the molar amount of the second polymerizable surfactant added.
摘要:
Fluorinated olefins and fluorinated vinyl ethers, each having sulfonyl azide groups, are useful monomers in preparing fluoropolymers having functional side groups. Such functional side groups are useful in curing the fluoropolymers and also for enhancing the adhesion of the fluoropolymers to other substrates.
摘要:
Water soluble polymers comprising at least one mole percent of a recurring monomer unit represented by the chemical structure ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are independently hydrogen or C.sub.1 -C.sub.6 alkyl; and X is hydrogen, an alkali or alkaline earth metal or ammonium are disclosed.
摘要:
A novel fluorine-containing crosslinkable copolymer comprising fluorine-containing monomer units each having a sulfonyl chloride group and monomer units of at least one ethylenically unsaturated compound is disclosed. The present fluorine-containing crosslinkable copolymer has a specific range of a sulfonyl chloride group content and can be easily crosslinked to give a fluorine-containing elastomer which is excellent in heat resistance and chemicals resistance.
摘要:
Provided are a barium-sulfate scale inhibitor and a barium-sulfate scale inhibitor composition each of which can express a high barium-sulfate scale-inhibiting ability. Also provided is a method of inhibiting a barium-sulfate scale that can express a high barium-sulfate scale-inhibiting ability. The barium-sulfate scale inhibitor of the present invention includes a sulfonic acid group-containing copolymer obtained by polymerizing a monomer composition containing a carboxyl group-containing monomer and a sulfonic acid group-containing monomer, in which when the barium-sulfate scale inhibitor is added at a solid content concentration of 1 wt % to high-salt-concentration water having a metal salt concentration of 10 wt % or more, the sulfonic acid group-containing copolymer is free from precipitating.
摘要:
To provide a process by which from a mixture containing a fluorinated copolymer, an unreacted monomer and a polymerization medium, the unreacted monomer and the polymerization medium can efficiently be recovered, and a lower polymer contained in the obtainable fluorinated copolymer can readily be reduced. A process for producing a fluorinated copolymer comprising (I) a step of polymerizing a fluorinated monomer having a carboxylic acid functional group or a sulfonic acid fanctional group and a fluorinated olefin in a polymerization medium to obtain a mixture containing a fluorinated copolymer, the unreacted monomer and the polymerization medium, (II) a step of continuously or intermittently transferring the mixture to an evaporation container equipped with a stirring machine and heating the mixture in the evaporation container with stirring to evaporate and recover the unreacted monomer and the polymerization medium and to obtain the fluorinated copolymer, and (III) a step of washing the fluorinated copolymer with a washing medium.