Nanoporous β-PVDF membranes with selectively functionalized pores

被引：34
|
作者：
Cuscito, O. [1 ]
Clochard, M. -C. [1 ]
Esnouf, S. [1 ]
Betz, N. [1 ]
Lairez, D. [2 ]
机构：
[1] Ecole Polytech, CEA, DSM, LSI,CNRS, F-91128 Palaiseau, France
[2] CEA Saclay, Lab Leon Brillouin, F-91191 Gif Sur Yvette, France
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2007年 / 265卷 / 01期
关键词：
beta-PVDF membranes; swift heavy ions; nanopores; poly(acrylic acid);
D O I：
10.1016/j.nimb.2007.08.089
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Poly(vinylidene fluoride) (P-PVDF) nanoporous membranes are obtained by heavy ion irradiation and track etching leading to cylindrical pores. Pores diameter measured by scanning electron microscopy and small angle neutron scattering lies in the 20-50 nm range. Electron paramagnetic resonance study gives evidence that radicals still remains in PVDF membrane after track-etching. These radicals allows acrylic acid polymerization to be initiated onto membrane. Radiografted and functionalized membranes are characterized using infrared spectroscopy and weighing. Finally, radiografted poly(acrylic acid) (PAA) has been selectively labeled by fluorophores and imaged by confocal laser scanning microscopy. Images show the localisation of PAA specifically inside nanopores. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：309 / 313
页数：5
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