Mechanism of Charge Transfer Initiation by the Dimethyl Phenyl Phosphine/Fe(III) Catalyst System |
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| Authors: | A Dutta P K Mahato N N Dass |
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| Institution: | Department of Chemistry Dibrugarh , University Dibrugarh , 786004, Assam, India |
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| Abstract: | The dimethyl phenyl phosphine (DMPP) initiated polymerization of methyl methacrylate (MMA) in dimethylsulfoxide was studied. Polymerization of MMA in this system required the presence of transition metal ions like Fe3+ or Cu2+. Kinetic studies showed that the propagation was free radical in nature. An interaction between DMPP and MMA was detected spectrophotometrically. A proposed mechanism involves a transition metal ion-activated dipole interaction between the carbonyl oxygen and the phosphorus atom with the ultimate formation of a methyl methacrylate type of free radical. |
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| Keywords: | Molecular orientation liquid crystalline polymer corona poling atomic force microscopy Small-angle X-ray scattering Piezoelectric materials |
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