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. Author manuscript; available in PMC: 2014 Feb 1.
Published in final edited form as: Radiat Phys Chem Oxf Engl 1993. 2012 Nov 1;83:111–121. doi: 10.1016/j.radphyschem.2012.10.007

Scheme 1.

Scheme 1

Flow chart illustrating potential problems that can arise during high-temperature processing and attempted e-beam crosslinking of polyurethane SMPs containing radiation sensitizer and inhibitor: (1) undesired premature sensitizer crosslinking during processing; (2) undesired inhibition of radiation crosslinking by inhibitor; (3) desired sensitizer stabilization without undesired radiation crosslinking inhibition