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负载钒(V)离子的季胺型阴离子交换树脂(PV)与硫脲(TU)组成氧化还原体系,在硫酸溶液中引发丙烯酸甲酯(MA)聚合。表观聚合速度与反应浓度关系是: R_F=5.5×10~5e~(-4400/RT)[MA]~(1.1)[PV]~(0.75)[TU]~(2.0)[H_2SO_4]~(4.0) 根据上述结果,提出并讨论了聚合的引发终止机理。
The quaternary ammonium anion exchange resin (PV) loaded with vanadium (V) ions and thiourea (TU) make up the redox system and initiate the polymerization of methyl acrylate (MA) in sulfuric acid solution. The relationship between apparent polymerization rate and reaction concentration is as follows: R_F = 5.5 × 10 ~ 5e ~ (-4400 / RT) [MA] ~ (1.1) PV ~ 0.75 ~ TU ~ 2.0 H_2SO_4 ~ 4.0) Based on the above results, the mechanism of initiation of polymerization was proposed and discussed.