| abstract |
A method for treating water containing dissolved solids, suspended solids, organic materials, or combinations thereof includes contacting water with a coating membrane comprising a coating material disposed on a membrane substrate. And the coating material comprises structural units derived from a compound of formula I, a compound of formula II and a compound of formula III, [Chemical 1] Wherein R 1 , R 2 and R 3 are each independently C 1 -C 12 alkyl, R 4 is alkylsilyl, L 1 is alkyluretanyl, and L 2 and L 3 are each independently X is hydroxy, alkoxy or alkylamino, and m, n and p are each independently in the range of 4-9. The coating membrane is joined to the backing in a membrane filtration device for use in the present method. [Selection figure] None |