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磁场强度对聚甲基丙烯酸甲酯(PMMA)立体构型的影响已见报导。在进一步的研究中发现,磁场强度对 PMMA 的分子量及分子量分布亦有一定的影响(该研究结果另行报导)。从单体的极性效应来看,甲基丙烯酸甲酯中影响 C=C 双键活性的主要因素为诱导效应,而在苯乙烯中则主要为共轭效应.磁场强度对共轭性单体的聚合反应、聚合物的分子量及分子量分布的影响作用,引起了作者的注意。故此,我们在不同的磁场强
The effect of magnetic field strength on the stereoconfiguration of polymethylmethacrylate (PMMA) has been reported. In a further study, it was found that the magnetic field strength also has a certain impact on the molecular weight and molecular weight distribution of PMMA (the results of this study are reported separately). From the perspective of the monomer polarity, the main factor affecting the C = C double bond activity in methyl methacrylate is the induction effect, while in styrene it is mainly the conjugate effect.For the conjugate monomer Of the polymerization reaction, the molecular weight of the polymer and the molecular weight distribution of the impact, aroused the author’s attention. Therefore, we are strong at different magnetic fields