Organic polymer compositions for removal of oxoanions from aqueous solutions
申请人:UT-Battelle, LLC
公开号:US11369944B2
公开(公告)日:2022-06-28
An organic polymer composition (OPC) comprising guanidinium-containing A units interconnected with B units of the formula *—R*)r, wherein each asterisk (*) in A units denotes a connection point with an asterisk in B units; R is a hydrocarbon linking group containing at least one carbon atom; r is an integer of 1, 2, or 3; and the composition necessarily includes an anionic species Xm− with a magnitude of charge m of at least 1, wherein the sum of negative charge provided by anionic species Xm− counterbalances the total positive charge provided by the A units. Also described herein is a method for removing one or more oxoanions from an aqueous source by (i) contacting the aqueous source with the above described OPC to result in absorption of the oxoanion into the OPC to produce an oxoanion-containing OPC; and (ii) removing the oxoanion-containing OPC from the aqueous source.
一种有机聚合物组合物(OPC),包含含有胍基的A单元,这些A单元通过具有式\-R*的B单元相互连接,其中A单元中的每个星号(*)表示与B单元中的星号相连的连接点;R是含至少一个碳原子的碳链;r是1、2或3的整数;且该组合物必然包括电荷量m至少为1的阴离子物种Xm−,其中阴离子物种Xm−提供的负电荷总和与A单元提供的正电荷总和形成电荷平衡。
此外,本文还描述了一种从水性来源中去除一种或多种含氧阴离子的方法,该方法包括以下步骤:
(i) 将上述有机聚合物组合物(OPC)与水性来源接触,使含氧阴离子被OPC吸收,从而生成含含氧阴离子的OPC;
(ii) 从水性来源中去除含含氧阴离子的OPC。
ALKYLIDENE AND ARYLIDENE DERIVATIVES OF DIAMINOGUANIDINE<sup>1</sup>
作者:EUGENE LIEBER、EDWIN J. STROJNY
DOI:10.1021/jo01138a002
日期:1952.4
ORGANIC POLYMER COMPOSITIONS FOR REMOVAL OF OXOANIONS FROM AQUEOUS SOLUTIONS
申请人:UT-Battelle, LLC
公开号:US20200122118A1
公开(公告)日:2020-04-23
An organic polymer composition (OPC) comprising guanidinium-containing A units interconnected with B units of the formula *—R*)
r
, wherein each asterisk (*) in A units denotes a connection point with an asterisk in B units; R is a hydrocarbon linking group containing at least one carbon atom; r is an integer of 1, 2, or 3; and the composition necessarily includes an anionic species X
m−
with a magnitude of charge m of at least 1, wherein the sum of negative charge provided by anionic species X
m−
counterbalances the total positive charge provided by the A units. Also described herein is a method for removing one or more oxoanions from an aqueous source by (i) contacting the aqueous source with the above described OPC to result in absorption of the oxoanion into the OPC to produce an oxoanion-containing OPC; and (ii) removing the oxoanion-containing OPC from the aqueous source.
US3950539A
申请人:——
公开号:US3950539A
公开(公告)日:1976-04-13
727. Heterocyclic compounds from urea derivatives. Part VII. Addition-products of diaminoguanidine and carbodi-imides, and their cyclisation