Photopolymerization of Cyclohexene Oxide Initiated with Iron-arene Complex

Abstract

Abstract: Two iron-arene complex photoinitiators with different substituents in arene ligands were synthesized, their activities in initiating photopolymerization of cyclohexene oxide (CHO) were compared with that of IRGACURE 261, a commercialized photoinitiator from Ciba-Geigy. Ahigher activity was found when the arene ligand was substituted with a stronger electron donating group. For the system initiated by IRGACURE 261 the concentration of active centers in CHOpolymerization was determined and it was found that the concentration is maximum at around 35℃. The post (dark) polymerization was significant, the polymerization yield decreased with the increase of irradiation temperature and increased with the increase of post polymerization temperature. The results are interpreted based on the mechanism proposed by Lohse, et al..

Key words: Iron-arene complex, Cyclohexene oxide, Photopolymerization, Activity, Post polymerization

CHEN Yong-lie, CHEN Xu-dong, LIANG Zhao-xi . Photopolymerization of Cyclohexene Oxide Initiated with Iron-arene Complex[J]. Chemical Research in Chinese Universities, 1992, 8(4): 450-453.

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Photopolymerization of Cyclohexene Oxide Initiated with Iron-arene Complex

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