Affiliation:
1. Georgetown University, USA
2. Naval Surface Warfare Center, USA
Abstract
Bombardment of pyrene-doped n-heneicosane (C21H44) in its orthorhombic solid phase with <1.3> MeV broadband X-rays results in the formation of both mono- and di-heneicosylpyrenes, whereas the same dose in liquid cyclohexane yields only monosubstituted pyrene. In both cases, the reaction efficiency decreases as pyrene concentration is increased from 10-5 to 10-2 M. Qualitatively, the overall attachment efficiency is higher in orthorhombic n-heneicosane than in liquid cyclohexane, but the selectivity of attachment is greater in cyclohexane. Differences between these results and those from irradiations of the same samples with eV range photons are discussed.
Reference26 articles.
1. Radiolysis of polyethylene films containing arenes: bromopyrene disssociation and pyrene binding in polymer films;BISCOGLIO M;J Phys Chem B,2000
2. Selectivity and efficiency of pyrene attachment to polyethylene films by bombardment with MeV-range protons;BROWN GO;J Phys Chem B,2002
3. Comparison of energy deposition modes in polyethylene films by MeV range neutrons, electrons, protons, and alpha particles as monitored by covalent attachment of doped pyrene molecules;BROWN GO;J Phys Chem B,2002
4. The influence of molecular oxygen and the slip agent, erucamide, on the selectivity of attachment of pyrene to polyethylene chains by > 300 nm radiation;BROWN GO;Polymer,2002
5. Triplet states in radiation chemistry: Radiochemical cis-trans isomerization;CALDWELL RA;J Am Chem Soc,1966
Cited by
2 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献