公开(公告)号：US06451921B2

公开(公告)日：2002-09-17

申请号：US09785193

申请日：2001-02-20

Applicant: Hilmar Weisse ,  Helmut Keul ,  Hartwig Höcker

Inventor： Hilmar Weisse ,  Helmut Keul ,  Hartwig Höcker

IPC: C08F12806

CPC classification number: C08G75/23 ,  B01D71/68 ,  B01D71/80 ,  B01D71/82

Abstract: Block copolymers containing blocks of unsulfonated aromatic polyether sulfones and blocks of aromatic polyether sulfones sulfonated on the aromatics are characterized in that the block length of the unsulfonated aromatic polyether sulfones in each case comprises at least 10 repeating units and that the sequence of the main chain at the block transitions between two adjacent blocks of aromatic polyether sulfones is the same as it is inside these blocks. These block copolymers may be prepared by polycondensation, and are preferably used as membranes. The block copolymers provide compounds which in addition to an adjustable degree of sulfonation have a defined length of sulfonated and unsulfonated blocks. As a result, the spectrum of the polymers suitable for the preparation of synthetic membranes can be expanded and graded.

Abstract translation: 含有未磺化的芳香族聚醚砜嵌段和在芳族化合物上磺化的芳族聚醚砜嵌段的嵌段共聚物的特征在于，在每种情况下，未磺化的芳族聚醚砜的嵌段长度至少包含10个重复单元，并且主链在 芳香族聚醚砜的两个相邻嵌段之间的嵌段过渡与这些嵌段内的相同。 这些嵌段共聚物可以通过缩聚制备，优选用作膜。 嵌段共聚物提供化合物，除了可调节磺化度之外，还具有限定长度的磺化和未磺化嵌段。 结果，可以扩展和分级适用于制备合成膜的聚合物的光谱。

公开(公告)号：US5116918A

公开(公告)日：1992-05-26

申请号：US657410

申请日：1991-02-19

Applicant: Hartwig Hocker ,  Helmut Keul ,  Edgar Leitz ,  Norbert Schon ,  Steffen Kuhling

Inventor： Hartwig Hocker ,  Helmut Keul ,  Edgar Leitz ,  Norbert Schon ,  Steffen Kuhling

IPC: C08G63/08 ,  C08G63/64

CPC classification number: C08G63/64

Abstract: Crosslinked copolymers ofA) cyclic aliphatic esters andB) cyclic aliphatic carbonatesin which part of B contains crosslinking-active side groups,their production and their use for the production of films.

Abstract translation: A）环状脂族酯和B）环状脂族碳酸酯的交联共聚物，其中部分B含有交联活性的侧基，它们的生产及其用于生产膜的用途。