Universal scalable and cost-effective surface modifications

Patent metadata

Field	Value
Publication number	US-2017296986-A1
Application number	US-201715581783-A
Country	US
Kind code	A1
Filing date	Apr 28, 2017
Priority date	Feb 21, 2013
Publication date	Oct 19, 2017
Grant date	—

Abstract

Disclosed are fouling resistant filtration membranes comprising a polymeric thin-film membrane comprising a surface. Also disclosed are methods of modifying thin-film filtration membranes, thereby improving, for example, the anti-fouling properties of the membranes. Also disclosed are methods of purifying water using the disclosed membranes. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

First claim

1 - 52 . (canceled)

53 . A compound having a structure represented by a formula:

wherein m is an integer selected from 0, 1, 2, 3, 4, 5, 6, 7, and 8;
wherein A is —(SO 2 )— and L is selected from -OQ and —NR 3 Q;
wherein Q is selected from hydrogen, a hydrophilic polymer, and a structure represented by a formula:

wherein Z is selected from —CR 6a R 6b —, —C(═O)—, —C(═NH)—, and —C(═NH)NR 7 —;
wherein each of R 1a and R 1b is independently selected from hydrogen and halogen;
wherein each of R 2a and R 2b is halogen;
wherein R 3 , when present, is selected from hydrogen and C1-C4 alkyl;
wherein each of R 4a and R 4b , when present, is independently selected from hydrogen, halogen, —CN, —OH, —NR 8a R 8b , —NR 8a R 8b H + , C1-C4 alkyl, C1-C4 monohaloalkyl, C1-C4 polyhaloalkyl, —SO 3 − , —SO 3 R 9 , —CO 2 − , and —CO 2 R 9 ;
wherein each of R 5a , R 5b , and R 5c is independently selected from hydrogen, halogen, —CN, —OH, —NR 10a R 10b , —NR 10a R 10b H + , C1-C4 alkyl, C1-C4 monohaloalkyl, C1-C4 polyhaloalkyl, —SO 3 − , —SO 3 R 11 , —CO 2 − , and —CO 2 R 11 ;
wherein each of R 6a and R 6b , when present, is independently selected from hydrogen, halogen, —CN, —OH, —NR 12a R 12b , —NR 12a R 12b H + , C1-C4 alkyl, C1-C4 monohaloalkyl, C1-C4 polyhaloalkyl, —SO 3 − , —SO 3 R 13 , —CO 2 − , and —CO 2 R 13 ;
wherein R 7 , when present, is selected from hydrogen and C1-C4 alkyl;
wherein each of R 8a and R b , when present, is independently selected from hydrogen and C1-C4 alkyl;
wherein R 9 , when present, is selected from hydrogen and C1-C4 alkyl;
wherein each of R 10a and R 10b , when present, is independently selected from hydrogen and C1-C4 alkyl;
wherein R 11 , when present, is selected from hydrogen and C1-C4 alkyl;
wherein each of R 12a and R 12b , when present, is independently selected from hydrogen and C1-C4 alkyl; and
wherein R 13 , when present, is selected from hydrogen and C1-C4 alkyl.

54 . The compound of claim 53 , wherein m is 0.

55 . The compound of claim 53 , wherein Z is selected from —CH 2 and —C(═NH)NH—.

56 . The compound of claim 53 , wherein the halogen is selected from —F and —Cl.

57 . The compound of claim 53 , wherein the halogen is —F.

58 . The compound of claim 53 , wherein R 5a is —CO 2 − , R 5b is NH 3 + , and R 5c is hydrogen.

59 . The compound of claim 53 , wherein R 5a is —CO 2 − , and each of R 5b and R 5c is hydrogen.

60 . The compound of claim 53 , wherein R 5a is —NH 3 + , and each of R 5b and R 5c is hydrogen.

61 . The compound of claim 53 , wherein the compound has a structure selected from:

62 . The compound of claim 53 , wherein the compound has a structure selected from:

63 . The compound of claim 53 , wherein the compound has a structure selected from:

64 . (canceled)

65 . The compound of claim 53 , wherein the compound is

Assignees

• Univ California

Inventors

• Hoek Eric M V
• Kaner Richard B
• Mcverry Brian T

Classifications

• B01D2323/36

  Introduction of specific chemical groups · CPC title

• B01D67/0088

  Physical treatment with compounds, e.g. swelling, coating or impregnation · CPC title

• B01D65/08

  Prevention of membrane fouling or of concentration polarisation · CPC title

• B01D2323/345

  UV-treatment · CPC title

• C02F2103/08

  Seawater, e.g. for desalination · CPC title