Citation: YANG Chaoxiong, WU Jinyuan, WU Yuxian. STUDIES ON THE POLYMERIZATION OF ACRYLONITRILE INITIATED BY METAVANADATE-CONTAININ G ANION EXCHANGER-THIOUREA REDOX SYSTEM[J]. Chinese Journal of Polymer Science, ;1991, 9(3): 251-259. shu

STUDIES ON THE POLYMERIZATION OF ACRYLONITRILE INITIATED BY METAVANADATE-CONTAININ G ANION EXCHANGER-THIOUREA REDOX SYSTEM

Received Date: 10 September 1990

The polymerization of acrylonitrile (AN) in aqueous nitric acid initiated by metavanadate-containing anion exchange resin (PV)-thiourea (TU) redox system at 20—40℃. has been investigated. The overall rate of polymerization (Rp) is given byRp=1.92×104e-6.860/RT [AN]1.2 [PV]0.44 [TU]1.0[HNO3]1.0The kinetic parameters differed from those of V5+-TU system indicated that the generation of the primary radicals is mainly a difffusion-controlled reaction. The effect of macromolecular field arisen from the polymer matrix exerts a great influence on the polymerization process.
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