Removal of perylene from water using block copolymer nanospheres or micelles

• Published in: Journal of applied polymer science Vol. 70; no. 2; pp. 397 - 408
• Main Authors: Henselwood, Fred, Wang, Guochang, Liu, Guojun
• Format: Journal Article
• Language: English
• Published: New York John Wiley & Sons, Inc 10.10.1998; Wiley
• Subjects: Applied sciences; block copolymer; Exact sciences and technology; micelles; nanospheres; Organic polymers; Physicochemistry of polymers; Polymers with particular properties; Preparation, kinetics, thermodynamics, mechanism and catalysts; water reclamation; Terpolymer; Acrylic acid copolymer; Trace compound; Micelle; Polycyclic aromatic compound; Experimental study; Submicron particle; Polyelectrolyte; Chemical modification; Binding capacity; Preparation; Acrylate copolymer; Water pollution; Property structure relationship; Methacrylate copolymer; Spherical particle; Perylene; Sorbent; Comparative study; Acylation; Styrene copolymer
• ISSN: 0021-8995; 1097-4628
• DOI: 10.1002/(SICI)1097-4628(19981010)70:2<397::AID-APP21>3.0.CO;2-#

Water‐soluble nanospheres with poly(acrylic acid) (PAA) coronas were prepared from poly(2‐cinnamoylethyl methacrylate)‐block‐PAA (PCEMA‐b‐PAA) and P(CEMA‐ran‐OEMA)‐b‐PAA, where “ran” denotes the random incorporation of 2‐octanoylethyl methacrylate (OEMA) into the PCEMA block. These nanospheres and polystyrene‐block‐PAA micelles uptake perylene, a polycyclic aromatic hydrocarbon (PAH), from water. The nanospheres or micelles, with the sorbed perylene, are precipitated by CaCl2. These nanospheres may be useful in concentrating PAHs present in trace amounts in water for chemical analysis or in the reclamation of water contaminated by PAHs. Investigated in this article are factors that govern the capacities of the nanospheres and micelles, and the critical calcium concentration for inducing nanosphere or micelle precipitation. © 1998 John Wiley & Sons, Inc. J. Appl. Polym. Sci. 70: 397–408, 1998