Abstract:
Sulfonated block copolymer composition formed by dissolving in an aprotic polar solvent at least one sulfonated block copolymer having at least one end block A and at least one interior block B wherein each A block contains essentially no sulfonic acid or sulfonate ester functional groups and each B block is a polymer block containing from about 10 to about 100 mol% sulfonic acid or sulfonate ester functional groups based on the number of sulfonation susceptible monomer units of the B block.
Abstract:
Described herein are modified sulfonated block copolymers which comprise at least two polymer end blocks A and at least one polymer interior block B, wherein each A block contains essentially no sulfonic acid or sulfonate functional groups and each B block comprises sulfonation susceptible monomer units and, based on the number of the sulfonation susceptible monomer units, from about 10 to about 100 mol% of a functional group of formula (I) -SO 2 -NR 1 R 2 or of a salt thereof, methods of making them as well as methods of using them, e.g., as membrane materials for electrically or osmotically driven applications.
Abstract translation:本文描述的是改性的磺化嵌段共聚物,其包含至少两个聚合物端嵌段A和至少一个聚合物内部嵌段B,其中每个A嵌段基本上不含磺酸或磺酸盐官能团,并且每个B嵌段包含磺化敏感单体单元和基于 关于磺化易感单体单元的数量,约10至约100摩尔%的式(I)-SO 2 -NR 1 R 2的官能团或其盐,制备它们的方法以及使用它们的方法,例如 作为电气或渗透驱动应用的膜材料。
Abstract:
Blends comprising a sulfonated block copolymer and particulate carbon are useful materials for membranes, films and coatings in applications which require high dimensional stability, high water vapor transport, high conductivity, and low flammability. The sulfonated block copolymer comprises at least two polymer end blocks A and at least one polymer interior block B wherein each A block contains essentially no sulfonic acid or sulfonate functional groups and each B block is a polymer block containing from about 10 to about 100 mol percent sulfonic acid or sulfonate functional groups based on the number of monomer units of the B block.
Abstract:
Selectively amino- or phosphino-functionalized block copolymers, and their preparation, for use as anion exchange membrane materials. The selectively functionalized block copolymers have at least two end blocks A each of which are substantially free of amino- or phosphino-functional groups, and have at least one interior block D which comprises at least one amino- or phosphino-functionalized polymer unit of formula (I) wherein Z is nitrogen or phosphorous; R 1 is hydrogen or alkyl; R 2 is hydrogen or is tertiary alkyl; R each independently, is hydrogen or is alkyl optionally substituted by a moiety -(A 1 -NR a ) x R b ; or two R groups, together with the Z to which they are bonded, form an optionally substituted ring; x is 1, 2 or 3; A 1 is straight chain alkylene optionally substituted by one or more methyl and/or ethyl groups; and R a and R b , each independently, is hydrogen or alkyl; or a corresponding onium salt.
Abstract:
A process for laminating a polar substrate with a film cast from a sulfonated block copolymer having at least one end block A and at least one interior block B wherein each A block contains essentially no sulfonic acid or sulfonate ester functional groups and each B block is a polymer block containing from about 10 to about 100 mol percent sulfonic acid or sulfonate ester functional groups based on the number of monomer units. The film is exposed to water and dried onto a polar or active metal substrate. The laminates do not delaminate in the presence of water and may be used for a variety of applications including energy exchange applications.