Molecularly imprinted poly(N-vinyl imidazole) based polymers grafted onto nonwoven fabrics for recognition/removal of phloretic acid

被引：11
|
作者：
Llorina Ranada, Ma [1 ]
Akbulut, Meshude [2 ]
Abad, Lucille [1 ]
Guven, Olgun [2 ]
机构：
[1] Philippine Nucl Res Inst, Quezon City 1101, Philippines
[2] Hacettepe Univ, Dept Chem, TR-06800 Ankara, Turkey
来源：
RADIATION PHYSICS AND CHEMISTRY | 2014年 / 94卷
关键词：
Molecularly imprinted polymers; Phloretic acid; Radiation-induced grafting; ANNIHILATION; TEMPERATURE; BINDING;
D O I：
10.1016/j.radphyschem.2013.04.016
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A solution of N-vinyl imidazole (Vim), ethylene glycol dimethylacrylate (EGDMA), and phloretic acid (p-hydroxyphenylpropionic acid, HPPA) as functional monomer, crosslinker and template, respectively, were used to graft molecularly imprinted polymer (MIP) onto polyethylene/polypropylene (PE/PP) nonwoven fabric via gamma radiation at room temperature. Control grafted films were also synthesized using the same procedure in the absence of HPPA. Binding performance of the MIP grafts was investigated for different template molecule concentrations and contact time. An imprinting factor for the sample prepared at 5 kGy dose was determined as 2.41 for 50 ppm HPPA solution for 3-h incubation. MIP graft layers were investigated by positron annihilation lifetime spectroscopy (PALS) as well as SEM. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：93 / 97
页数：5
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