WU Jin-yuan, YANG Yi-guang, YANG Chao-xiong. STUDY ON THE POLYMERIZATION OF ACRYLONITRILE INITIATED BY "CAGE" VANADYL(IV) POLY (OXIME- IMIDODIACETATE)-THIOUREA SYSTEM[J]. Acta Polymerica Sinica, 1992,(4):391-397.
WU Jin-yuan, YANG Yi-guang, YANG Chao-xiong. STUDY ON THE POLYMERIZATION OF ACRYLONITRILE INITIATED BY "CAGE" VANADYL(IV) POLY (OXIME- IMIDODIACETATE)-THIOUREA SYSTEM[J]. Acta Polymerica Sinica, 1992,(4):391-397.DOI:
The polymerization of acrylonitrile (AN) in aqueous nitricacid initiated by "cage" vanadyl(IV) poly (oxime-imidodiacetate) (CPV)-thiourea (TU) system has been investigated. The overall rate of polymerization isRP = 10×108e-10.500 /RT[AN]1.0[CPV]1.0[TU]1.5[HNO3]3.0The length of the induction period (r) varies with the polymerization temperature and the substrate concentrations. It may be written as1/τ = 5.2×109e-12.800/RT[AN]1.0[CPV]1.0[TU]1.5[HNO3]3.0 These results suggests that the chain radicals are terminated via bimolecular reaction predomintately.Possibly
it is affected by the steric hindrance of the bulky polymer supporter.