Journal
RADIATION PHYSICS AND CHEMISTRY
Volume 118, Issue -, Pages 107-110Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.radphyschem.2015.03.027
Keywords
2-(2-methoxyethoxy)ethyl methacrylate; Radiation polymerization and cross-linking; Gradient hydrogels
Funding
- Ministry of Science and Higher Education of Poland [N N209200738, 3142/IAEA/2014/0]
- Polish National Science Centre [2013/09/B/ST4/03010]
- International Atomic Energy Agency [F23030, 18281/R0]
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Electron beam irradiation of 2-(2-methoxyethoxy)ethyl methacrylate and ethylene glycol dimethacrylate mixtures leads to the formation of cross-linked structures that exhibit a gradient of cross-link density, as demonstrated by gel fraction, swelling and Differential Scanning Calorimetry analysis. The reason for observed phase separation is formation of the high molecular weight clusters and its precipitation before gelation dose. This effect can be controlled/influenced by absorbed dose and cross-linker concentration. (C) 2015 Elsevier Ltd. All rights reserved.
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