Radiation grafting of NIPAAm on PVDF nuclear track membranes

被引:29
作者
Mazzei, R [1 ]
Smolko, E [1 ]
Tadey, D [1 ]
Gizzi, L [1 ]
机构
[1] Comis Nacl Energia Atom, Ctr Atom Ezeiza, Unidad Aplicaciones Tecnol & Agropecuarias, Lab Polimcros, RA-1842 Ezeiza, Buenos Aires, Argentina
关键词
grafting; gamma radiations; nuclear track membranes; NIPAAm; PVDF; fragment fissions;
D O I
10.1016/S0168-583X(00)00243-3
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
Polymer surface modifications are obtained by the application of radiation treatments and other physico-chemical methods: fragment fission (ff) or ion implantation, etching and grafting procedure. Poly vinylidene fluoride (PVDF) foils were irradiated during different times to produce pores of different diameters through the foils. In this way, nuclear track membranes (NTM) were produced with different track diameters and track numbers. Active sites were formed using a gamma-ray Co-60 source and then contacted with N-isopropylacrylamide (NIPAAm) to obtain a graft copolymer that responds to environmental conditions. The present work shows the grafting yield as a function of: gamma-dose, NIPAAm concentration, pure diameter, track density, etc. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:419 / 426
页数:8
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