Amphiphilic Block Copolymer for adsorption of Organic Contaminants

• 作者: Jae-Woo Choi Kie-Yong Cho Kyung-Youl Baek Natalia Valer’yevna Shim Sang-Hyup Lee
• 来源期刊: 化学工程与科学期刊(英文)
• 学科: 化学
• 关键词: BTEX ENCAPSULATION External Temperature CHANGING System POLYMERIC ADSORBENT Van der WAALS Force
• 年，卷（期）: 2011,（2）
• 页码范围: 77-82
• 页数: 6页
• 分类号: O6

摘要

In this study, new polymeric adsorbents, 2 types of polystyrene-block-poly (N-isopropylacrylamide) (PSN, structure of hydrophobic core and hydrophilic shell), were developed and applied for removal of organic pollutants from wastewater. Encapsulation of organic pollutants by the polystyrene-block-poly (N-isopropylacrylamide) (PSN) resulted in increasing hydrophobicity of the polystyrene with abundant hydrophobic spaces within the amphiphilic block copolymer. The encapsulation mechanism of BTEX by PSN was investigated and found to be mainly attributable to the Van der Waals interactions between the aromatic ring of BTEX and the hydrophobic core of PSN. Polystyrene-block-poly (N-isopropylacrylamide) showed good potential as a novel and cost effective adsorbent for application to wastewater treatment, which can be simply regenerated and reused using an external temperature changing system.