Abstract
Allylamine (AA)-functionalized surfaces for cell adhesion and tissue engineering generated by plasma reactions present several disadvantages, such as amine degradation after 1 week of storage in air and difficulty in achieving a highly specific surface functionalization. In this work, polypropylene (PP) and polyethylene (PE) films were functionalized with AA by γ irradiation to enhance adhesion and compatibility without changing intrinsic bulk properties, thus avoiding the disadvantages of plasma synthesis. Irradiation grafting was realized by a direct and pre-irradiation oxidation method. The effect of different parameters studied were characterized by Fourier transform infrared spectra, thermogravimetric analysis, differential scanning calorimetry, scanning electron microscopy, and contact angle measurements.
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ACKNOWLEDGMENTS
The authors thank A. Ortega, A. Ramirez, L.M Valdez, L. M Escamilla, and F. Garcia from ICN UNAM and E. Reyes-Morales from IIM UNAM, for technical support, as well as DGAPA UNAM grant IN200116 for financial support.
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The supplementary material for this article can be found at https://doi.org/10.1557/mrc.2018.213.
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Pérez-Calixto, M., González-Pérez, G., Dionisio, N. et al. Surface functionalization of polypropylene and polyethylene films with allylamine by γ radiation. MRS Communications 9, 264–269 (2019). https://doi.org/10.1557/mrc.2018.213
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DOI: https://doi.org/10.1557/mrc.2018.213