Radiation grafting of N,N′-dimethylacrylamide and N-isopropylacrylamide onto polypropylene films by two-step method

被引：37
|
作者：
Contreras-Garcia, A. [1 ]
Burillo, G. [1 ]
Aliev, R. [1 ]
Bucio, E. [1 ]
机构：
[1] Univ Nacl Autonoma Mexico, Inst Ciencias Nucl, Dept Quim Radiac & Radioquim, Mexico City 04510, DF, Mexico
来源：
RADIATION PHYSICS AND CHEMISTRY | 2008年 / 77卷 / 08期
关键词：
polypropylene; N; '-dimethylacrylamide; N-isopropylacrylamide; radiation grafting; LCST;
D O I：
10.1016/j.radphyschem.2008.02.007
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：
Polypropylene (PP) films were modified by the consecutive grafting of N, N'-dimethylacrylamide (DMAAm) and N-isopropylacrylamide (NIPAAm) (two-step method) using preirradiation method with gamma-rays. The effect of absorbed dose, monomer concentration and reaction time on the degree of grafting was determined. The grafted samples were verified by the FTIR-ATR spectroscopy; thermal properties were analyzed by differential scanning calorimetry (DSC) and the stimuli-responsive behavior was studied by swelling and contact angle in water as well as DSC. Thermoresponsive films of (PP-g-DMAAm)-g-NIPAAm. presented a lower critical solution temperature (LCST) at 36.5 degrees C. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码：936 / 940
页数：5
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