MULTI-BRANCHED CATIONIC PHOSPHONIUM SALT, FORWARD OSMOSIS EXTRACT EMPLOYING THE SAME AND FORWARD OSMOSIS SEAWATER DESALINATION PROCESS

摘要

A multi-branched cationic phosphonium salt is provided. The multi-branched cationic phosphonium salt has a structure represented by formula (I):; {Z[P⁺(R¹)(R²)(R³)]_n}(X⁻)_n  (I)wherein each of R¹, R², and R³ is independently a linear or branched C₁˜C₁₀ alkyl group, X⁻ is an organic or inorganic anion, and Z has a structure represented by Formula (IIb) or Formula (IIc):; wherein a is an integer of 1˜15. In Formulas (IIb) and (IIc), Z is connected to [P⁺(R¹)(R²)(R³)] at the position marked by an asterisk (*), and n is an integer of 3˜4.