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Removal of perylene from water using block copolymer nanospheres or micelles

机译:使用嵌段共聚物纳米球或胶束从水中去除per

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摘要

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-bloch-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. (C) 1998 John Wiley & Sons, Inc. [References: 21]
机译:由聚(甲基丙烯酸2-肉桂酰基乙酯)-嵌段-PAA(PCEMA-b-PAA)和P(CEMA-ran-OEMA)-b-PAA制备具有聚丙烯酸(PAA)电晕的水溶性纳米球“ ran”表示将甲基丙烯酸2-辛酰基乙基酯(OEMA)随机掺入PCEMA嵌段中。这些纳米球和聚苯乙烯-斑点-PAA胶束从水中吸收:per,一种多环芳烃(PAH)。带有吸附的per的纳米球或胶束通过CaCl2沉淀。这些纳米球可用于浓缩水中痕量的PAH,以进行化学分析或回收被PAH污染的水。本文研究了控制纳米球和胶束容量的因素,以及诱导纳米球或胶束沉淀的关键钙浓度。 (C)1998 John Wiley&Sons,Inc. [参考:21]

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