摘要:
Ionomers and ionomer membranes, consisting of a non-fluorinated or partly fluorinated non-, partly or fully-aromatic main chain and a non- or partly-fluorinated side chain with ionic groups or their non-ionic precursors, have a positive impact on the proton conductivity of the ionomers. Various processes produce these polymeric proton conductors.
摘要:
The invention relates to producing monomer, oligomer and polymer non-fluorinated, partially fluorinated or perfluorinated sulphonic acids by reacting halogenated, low-molecular weight, oligomer or macromolecular arenes with (hydrogen) sulphites, dithionites, sulphides or other reducing sulfur salts, possibly by oxidising sulphur-containing arene intermediates which are formed at a sulphur oxidation degree less than +6 by means of appropriate oxidation agents with formation of corresponding sulphonate functional groups (sulphonic acid, sulfohalogenide, sulphonamide and sulphonic acid ester groups). The invention also relates to a method for producing monomer, oligomer or polymer non-halogenated, partially halogenated or perhalogenated phosphonic acid esters and the derivatives thereof (for example, a free phosphonic acid or a phosphonic acid salt) by a nucleophile aromatic substitution (Michaelis-Becker-reaktion, complete or partial substitution of halogenide functional groups by phosphate functional groups (phosphonic acid esters, phosphonic acid amides, phosphonic acids, phosphonic acid salts, phosphonic acid halogenides). Said invention also relates to a method for producing polymer or ionomer non-halogenated, partially halogenated or perhalogenated containing (CF2)xPO(OR)2— or (CF2)xSO2Me- or (CF2)xSO3Me- side chains, (wherein x=1-20, R=any organic radical, Me=any monovalent cation). A method for carrying out a nucleophile polycondensation of said functionalised (i.e. sulphonated, sulphonated or phosphonated) monomers into oligomers or polymers is also disclosed.
摘要翻译:本发明涉及通过卤代,低分子量,低聚物或大分子芳烃与(氢)亚硫酸盐,连二亚硫酸盐,硫化物或其它还原硫盐反应制备单体,低聚物和聚合物非氟化的,部分氟化的或全氟化的磺酸,可能通过 通过形成相应的磺酸盐官能团(磺酸,磺基卤化物,磺酰胺和磺酸酯基团)的合适的氧化剂,氧化含硫芳烃中间体,它们以小于+6的硫氧化度形成。 本发明还涉及通过亲核试剂芳香取代产生单体,低聚物或聚合物非卤代,部分卤化或全卤代膦酸酯及其衍生物(例如游离膦酸或膦酸盐)的方法(Michaelis - 磷酸酯官能团(膦酸酯,膦酸酰胺,膦酸,膦酸盐,膦酸卤化物)完全或部分取代卤化物官能团的方法本发明还涉及聚合物或离聚物的制备方法 (CF 2)x SO 2 Me-或(CF 2)x SO 3 Me侧链,(其中x = 1-20,R =任何有机基团,Me =任何 还公开了将所述官能化(即磺化,磺化或膦酸化)单体进行亲核物缩聚成低聚物或聚合物的方法。
摘要:
The invention relates to the following types of composite membranes; composites or composite membranes obtained by adding a metal salt, e.g. from ZrOCl2, to a solvent, especially DMSO, for dissolving one or more polymers in an organic solvent or in aqueous systems, in addition to the subsequent precipitation in the matrix of the thus produced composite-membrane by post-treatment thereof in an acid or in a salt solution, especially phosphoric acid. The invention also relates to composites or composite membranes obtained by subsequent ion exchange of finished polymer membranes with a suitable salt cation, especially ZrO2+, wherein the polymer membrane is, optionally, swollen with an organic solvent or a mixture of organic solvent with water prior to the ion exchange and the subsequent precipitation of a low soluble salt, e.g. from Zr3(PO4)4, in the membrane by post-treatment thereof in an acid or in a salt solution, especially phosphoric acid. The invention further relates to composites or composite membranes obtained by adding nano-scaled Zr3(PO4)4 powder to a polymer solution, composites and composite membranes obtained according to the above-mentioned methods, wherein additional heteropoly acids are also incorporated into the polymer or membrane morphology, in addition to methods for producing said inventive polymers and membranes.
摘要:
The invention relates to the following types of composite membranes; composites or composite membranes obtained by adding a metal salt, e.g. from ZrOCl2, to a solvent, especially DMSO, for dissolving one or more polymers in an organic solvent or in aqueous systems, in addition to the subsequent precipitation in the matrix of the thus produced composite-membrane by post-treatment thereof in an acid or in a salt solution, especially phosphoric acid. The invention also relates to composites or composite membranes obtained by subsequent ion exchange of finished polymer membranes with a suitable salt cation, especially ZrO2+, wherein the polymer membrane is, optionally, swollen with an organic solvent or a mixture of organic solvent with water prior to the ion exchange and the subsequent precipitation of a low soluble salt, e.g. from Zr3 (PO4)4, in the membrane by post-treatment thereof in an acid or in a salt solution, especially phosphoric acid. The invention further relates to composites or composite membranes obtained by adding nano-scaled Zr3(PO4)4 powder to a polymer solution, composites and composite membranes obtained according to the above-mentioned methods, wherein additional heteropoly acids are also incorporated into the polymer or membrane morphology, in addition to methods for producing said inventive polymers and membranes.
摘要翻译:本发明涉及以下类型的复合膜; 复合材料或复合膜,通过加入金属盐, 从一种溶剂,特别是DMSO中,将一种或多种聚合物溶解在有机溶剂或水性体系中,除了随后通过如此制备的复合膜的基质沉淀,由 在酸或盐溶液,特别是磷酸中进行后处理。 本发明还涉及通过随后使用合适的盐阳离子离子交换完成的聚合物膜而获得的复合材料或复合膜,特别是ZrO 2 O + 在离子交换之前用有机溶剂或有机溶剂与水的混合物溶胀,随后沉淀低可溶性盐,例如 通过在酸或盐溶液中,特别是磷酸中后处理,从Zr 3(PO 4)4 S 4 。 本发明还涉及通过将纳米级Zr 3(PO 4)4 N 4)粉末添加到聚合物溶液中获得的复合材料或复合膜,复合材料 以及根据上述方法获得的复合膜,其中除了制备所述本发明聚合物和膜的方法之外,还将其它杂多酸掺入聚合物或膜形态中。
摘要:
Ionomers and ionomer membranes, consisting of a non-fluorinated or partly fluorinated non-, partly or fully-aromatic main chain and a non- or partly-fluorinated side chain with ionic groups or their non-ionic precursors, have a positive impact on the proton conductivity of the ionomers. Various processes produce these polymeric proton conductors.
摘要:
The invention relates to blends and blend membranes from low-molecular hydroxymethylene-oligo-phosphonic acids R—C(PO3H2)x(OH)y and polymers, the group R representing any organic group and the polymers containing the following functional groups: cation exchanger groups or their nonionic precursors of the type SO2X, X=Hal, OH, OMe, NR1R2, OR1 with Me=any metal cation or ammonium cation, R1, R2=H or any aryl- or alkyl group, POX2, COX and/or basic groups such as primary, secondary or tertiary amino groups, imidazole groups, pyridine groups, pyrazole groups etc. and/or OH groups. Low molecular hydroxymethylene-oligo-phosphonic acids R—C(PO3H2)x(OH)y are preferred in which x=2 and y=1. The invention also relates to low-molecular hydroxymethylene-oligo-phosphonic acids R—C(PO3H2)2(OH)1 and polymers, wherein the group R of the hydroxymethylene-oligophosphonic acid contains an aliphatic or aromatic basic group which ionically interacts with the acidic groups of the polymer or of the polymer mixture. The invention further relates to blends and blend membranes from low-molecular hydroxymethylene-oligo-phosphonic acids R—C(PO3H2)2(OH)1 and polymers, wherein the OH groups of the low-molecular hydroxymethylene-1,1-bisphosphonic acid are covalently cross-linked with each other or optionally with OH groups of the polymer. The invention also relates to polymers that are modified with the 1-hydroxymethylene-1,1-bisphosphonic acid group. The polymers are produced by reacting polymers which contain carboxylic acid groups or carboxylic halide groups —COHal (Hal=F, Cl, Br, I) with phosphite compounds or by reacting polymeric aldehydes or polymeric keto compounds with phosphite esters while carrying out an amine catalysis, an oxidation of the intermediary hydroxyphosphonic acid with MnO2 or any other oxidant. The invention finally relates to methods for producing the aforementioned materials and to the use of membranes of the aforementioned materials in membrane processes and especially in fuel cells, even at temperatures of >100° C.
摘要:
Various blends and blend membranes from low-molecular hydroxymethylene-oligo-phosphonic acids R—C(PO3H2)x(OH)y and polymers, the group R representing any organic group, the polymers containing cation exchanger groups or their nonionic precursors of the type SO2X, X being a halogen, OH, OMe, NR1R2, OR1 with Me being any metal cation or ammonium cation, R1, R2 being H or any aryl- or alkyl group, PDX2, COX and/or basic groups such as primary, secondary or tertiary amino groups, imidazole groups, pyridine groups, pyrazole groups etc. and/or OH groups. Such membranes may also include polymers that are modified with the 1-hydroxymethylene-1,1-bisphosphonic acid group. The polymers may be formed by reacting polymers which contain carboxylic acid groups or carboxylic halide groups —COHal (Hal=F, Cl, Br, I) with phosphite compounds or by reacting polymeric aldehydes or polymeric keto compounds with phosphite esters while carrying out an amine catalysis, an oxidation of the intermediary hydroxyphosphonic acid with MnO2 or another oxidant.
摘要:
Ionomers and ionomer membranes with the ionic group on a flexible side chain have a positive impact on the proton conductivity of the ionomers. Various processes produce these polymeric proton conductors.
摘要:
A blend or blend membrane formed from a hydroxymethylene-oligo-phosphonic acid R-C(P03H2)x(OH)y and a polymer, in which the radical R is any organic radical, x and y are integers, the hydroxymethylene-oligo-phosphonic acid is a product of a reaction involving a carbonic acid, a carbonic acid halide or a carbonic acid anhydride, and the polymer includes a functional group selected from the group consisting of (i) suitable cation exchange groups or their non-ionic precursor and (ii) suitable basic groups.