COMPOSITE POLYAMIDE MEMBRANE WITH IMPROVED STRUCTURE

A thin film composite polyamide membrane having a porous support and a thin film polyamide layer comprising a reaction product of m-phenylene diamine (mPD) and trimesoyl chloride (TMC), characterized by the thin film polyamide layer having a critical strain value of less than 10%. In another embodim...

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Main Authors ARROWOOD TINA L, HAWN DAVID D, WU HUANG, JONS STEVEN D, CIESLINSKI ROBERT C, ROSENBERG STEVEN, BADAMI ANAND S, ROY ABHISHEK, PAUL MOU
Format Patent
LanguageEnglish
Published 18.06.2015
Subjects
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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Summary:A thin film composite polyamide membrane having a porous support and a thin film polyamide layer comprising a reaction product of m-phenylene diamine (mPD) and trimesoyl chloride (TMC), characterized by the thin film polyamide layer having a critical strain value of less than 10%. In another embodiment, the thin film polyamide layer has a modulus of greater than 0.75 (GPa). In yet another embodiment, the thin film polyamide layer has an equilibrium swelling value of at least 45%. In another embodiment, the thin film polyamide layer has a thickness of at least 230 nm.
Bibliography:Application Number: US201314407366