摘要:
A covalently cross-linked polymer or polymer membrane consisting of one or more polymers, which can bear the following functional groups (M=Hal(F, Cl, Br, I), OR, NR2; R=alkyl, hydroxyalkyl, aryl; (Me=H, Li, Na, K, Cs, or other metal cations or ammonium ions): a) precursors of cation exchange groups: SO2M and/or POM2 and/or COM b) sulphinate groups SO2Me and which can be covalently cross-linked using the following organic compounds: a) di-, tri- or oligofunctional haloalkanes or haloaromatics, which have been reacted with sulphinate groups SO2Me, whereby the following cross-linking bridges are present in the polymer/in the polymer blend/in the polymer membrane: (Y=cross-linking bridges, X=Hal (F, Cl, Br, I), OR, (CH2)x—; -arylene-; —(CH2)x-arylene-; CH2arylene-CH2—, x=3-12): polymer-SO2Y—SO2-polymer and/or b) compounds containing the following groups: Hal-(CH2)x—NHR, one side of which (Hal-) has been reacted with sulphinate groups SO2ME and the other side (—NHR) with SO2M groups, whereby the following cross-linking bridges are present in the polymer/in the polymer blend/in the polymer membrane: polymer-SO2—(CH2)x—NR—SO2 polymer and/or c) compounds containing the following groups: NHR—(CH2)x—NHR, which have been reacted with sulphinate groups SO2ME, whereby the following cross-linking bridges are present in the polymer/in the polymer blend/in the polymer membrane: polymer-SO2—NR—(CH2)x—NR—SO2-polymer.
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:
The present invention relates to ionically and covalently cross-linked polymers and polymer membranes having recurrent units of the general formula (1), wherein Q is a link, oxygen, sulfur, (2) or (3) and the R radical is a divalent radical of an aromatic or heteroaromatic compound, and which are characterized in that a) R radical comprises at least partially substituents of general formula (4A), (4B), (4C), (4D), (4E), (4F), (4G) and/or (4H), b) R radical comprises at least partially substituents of the general formula (5A) and/or (5B) and/or the R radical is at least partially a group of the general formula (5C) and/or (5D) and c) the R radical comprises at least partially bridges of the general formula (6) linking at least to R radicals together, R1, R2, R3, R4, R5, M, X, Y, Z and m having the herein-mentioned meanings.
摘要:
The invention relates to novel polymers or oligomers containing at least sulfonite groups (P-(SO2)nX, X=1−(n=1), 2−(n=2) or 3−(n=3) valent metal cation or H+ or ammonium ion NR4+ wherein R=alkyl, aryl, H), which are obtained by completely or partially reducing polymers or oligomers containing at least SO2Y-groups (Y=F, Cl, Br, I, OR, NR2 (R=alkyl and/or aryl and/or H), N-imidazolyl, N-pyrazolyl) by means of suitable reducing agents in a suspension or in a solution form. The invention also relates to polymers and polymer(blend) membranes which are obtained by further reacting the obtained sulfinated polymers, especially by alkylation of the sulfinate groups with mono- di- or oligo functional electrophiles. The invention further relates to methods for producing the sulfinated polymers and for further reacting the sulfinated polymers with electrophiles by S-alkylation.
摘要:
The invention relates to a composite or a composite membrane consisting of an ionomer and of an inorganic optionally functionalized phyllosilicate. The isomer can be: (a) a cation exchange polymer; (b) an anion exchange polymer; (c) a polymer containing both anion exchanger groupings as well as cation exchanger groupings on the polymer chain; or (d) a blend consisting of (a) and (b), whereby the mixture ratio can range from 100% (a) to 100% (b). The blend can be ionically and even covalently cross-linked. The inorganic constituents can be selected from the group consisting of phyllosilicates or tectosilicates.
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:
The invention relates to a composite or a composite membrane consisting of an ionomer and of an inorganic optionally functionalized phyllosilicate. The isomer can be: (a) a cation exchange polymer; (b) an anion exchange polymer; (c) a polymer containing both anion exchanger groupings as well as cation exchanger groupings on the polymer chain; or (d) a blend consisting of (a) and (b), whereby the mixture ratio can range from 100% (a) to 100% (b). The blend can be ionically and even covalently cross-linked. The inorganic constituents can be selected from the group consisting of phyllosilicates or tectosilicates.
摘要:
The invention relates to a composite or a composite membrane consisting of an ionomer and of an inorganic optionally functionalized phyllosilicate. The isomer can be: (a) a cation exchange polymer; (b) an anion exchange polymer; (c) a polymer containing both anion exchanger groupings as well as cation exchanger groupings on the polymer chain; or (d) a blend consisting of (a) and (b), whereby the mixture ratio can range from 100% (a) to 100% (b). The blend can be ionically and even covalently cross-linked. The inorganic constituents can be selected from the group consisting of phyllosilicates or tectosilicates.
摘要:
The invention relates to a composite or a composite membrane consisting of an ionomer and of an inorganic optionally functionalized phyllosilicate. The isomer can be: (a) a cation exchange polymer; (b) an anion exchange polymer; (c) a polymer containing both anion exchanger groupings as well as cation exchanger groupings on the polymer chain; or (d) a blend consisting of (a) and (b), whereby the mixture ratio can range from 100% (a) to 100% (b). The blend can be ionically and even covalently cross-linked. The inorganic constituents can be selected from the group consisting of phyllosilicates or tectosilicates.