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研究了CuBr/bpy催化、Eib -Br引发St/MMA自由基共聚反应动力学。发现在不同的起始单体组成比条件下 ,两种单体以基本相同的速率进行聚合 ,并得到恒比组成的共聚物。分子量的可控性和窄分子量分布证明这是一种“活性”聚合过程。建立了用红外光谱表征St/MMA共聚物序列结构的方法。
The CuBr / bpy catalysis and the kinetics of E / Br-initiated St / MMA radical copolymerization were studied. It was found that at different starting monomer composition ratios both monomers were polymerized at substantially the same rate and a copolymer of constant composition was obtained. The controllability of molecular weight and narrow molecular weight distribution proves that this is an “active” polymerization process. A method for characterizing the structure of St / MMA copolymer by infrared spectroscopy was established.