Versace Davy-Louis, Lalevée Jacques, Fouassier Jean-Pierre, Guillaneuf Yohann, Bertin Denis, Gigmes Didier
Department of Photochemistry, CNRS, University of Haute Alsace, ENSCMu, 3 rue Alfred Werner, 68093 Mulhouse Cedex, France.
Macromol Rapid Commun. 2010 Aug 3;31(15):1383-8. doi: 10.1002/marc.201000144. Epub 2010 Jun 22.
The photochemical properties of two new photocleavable alkoxyamines bearing a benzophenone-derived chromophore were studied by electron spin resonance (ESR). The CO bond cleavage has been demonstrated and the photolysis rate constants (k(d) ) determined over a large range of light intensity through the monitoring of the nitroxide concentration in aerated conditions. The obtained kinetic data highlight for the first time the linear dependence of k(d) on the light intensity for alkoxyamines: this should be a driving factor for nitroxide mediated radical photopolymerization (NMP(2) ).
通过电子自旋共振（ESR）研究了两种带有二苯甲酮衍生发色团的新型光可裂解烷氧基胺的光化学性质。已证实了CO键的裂解，并通过监测通气条件下氮氧化物的浓度，在大范围的光强度下测定了光解速率常数（k(d)）。所获得的动力学数据首次突出了烷氧基胺的k(d)对光强度的线性依赖性：这应该是氮氧化物介导的自由基光聚合反应（NMP(2)）的一个驱动因素。
