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

页码：936 / 940

页数：5

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