09-03-2017 дата публикации
Номер: US20170065936A1
Принадлежит:
Provided herein are filtration membranes for water treatment, and methods for preventing fouling of such membranes. The method described herein comprises grafting the membrane surface with an organic moiety, by reacting the surface with an organometallic reagent, a phosphonate, a phosphinate, or an organosilane. 1. A method for reducing the sensitivity of a membrane comprising an oxide and/or hydroxide of silicon or a metal to fouling comprising grafting a surface of the membrane comprising said oxide and/or hydroxide with an organic moiety Ror Rby contacting said surface with an organometallic reagent , a phosphonate , a phosphinate , or an organosilane , wherein{'sup': 1', '7', '8', '9', '7', '8', '9, 'sub': 1-12', '6-10', '7-16', '7-16', 'n', '3-8', '3-8', '4-10', '4-10', '2-12', '1-6', '1-4', '2-12', '1-4', '1-4, 'Ris selected from the group consisting of Calkyl, Caryl, Calkylaryl, Carylalkyl, —R[OR]R, Ccycloalkyl, Ccycloalkenyl, Ccycloalkylalkyl, Ccycloalkenylalkyl, Calkenyl, 3- to 8-membered heterocyclyl, 5- to 10-membered heteroaryl, heterocyclylCalkyl, heteroarylCalkyl and Calkynyl; wherein Rand Rare independently from each other Calkylene; n is an integer from 1 to 4; and Ris Calkyl; and'}{'sup': 10', '11', '12', '13', '11', '12', '13, 'sub': 1-8', '6-10', '7-16', '7-16', 'm', '3-8', '3-8', '4-10', '4-10', '2-12', '1-6', '1-4', '2-12', '1-4, 'Ris selected from the group consisting of Calkylene, Carylene, Calkylarylene, Carylalkylene, —R[OR]R—, Ccycloalkylene, Ccycloalkenylene, Ccycloalkylalkylene, Ccycloalkenylalkylene, Calkenylene, 3- to 8-membered heterocyclylene, 5- to 10-membered heteroarylene, heterocyclylCalkylene, heteroarylCalkylene and Calkynylene; wherein R, R, and Rare independently from each other Calkylene, and m is an integer from 1 to 4;'}{'sup': 1', '10', '4', '5', '6', '4', '5', '6, 'sub': 1-6', '6-10, 'wherein Rand Rare optionally substituted with one or more groups independently selected from hydroxyl, —OR, amino, halo, sulfhydryl, —SR, — ...
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