Study Of Living Polymerization Mediated By Iron～Ⅱ Chloride/ Benzeneacetic Acid Catalyst

This paper has studied the development of efficient catalyst system of living freeradical polymerization and living cationic polymerization of styrene.In the research work of living free radical polymerization, to discover the novel and efficient catalyst system is a impertinent aspect. Atom Transfer Radical Polymerization (ATRP) is a novel polymerization method promoted in the recent years. In the reaction of atom transfer radical polymerization, catalyst system plays a crucial role in the control of the polymerization, the exploiture of novel and efficient catalyst system is in the highlight.On the basis of literature research, we find that the differential of redox potential of the catalyst has a range for successful ATRP. Enlightened by that, we connect the selection of catalyst with electrochemistry. Ferrous (II) chloride/ Benzeneacetic acid and Ferrous (II) chloride/Butanedioic acid was adopted as the catalyst for ATRP of styrene, and the effects of many factors on the polymerization were also investigated. Polystyrene with low polydispersity (1.2