聚苯乙烯—甲基丙烯酸酯嵌段共聚物的1~HNMR研究

~1H NMR Study of Block—copolymer PS—b—PMMA AND PS—b—P(MMA—co—GMA)

嵌段共聚物在热塑生弹性体,高分子增溶剂等方面有十分广泛的用途,利用超声波辐照制备嵌段共聚物是一种相对较为简单,成本较低的方法,这方面已有不少研究报道。但由于聚合反应是自由基型,对其子或组成的控制则更困难,因此,合成嵌段共聚物后。

A series of copolymers PS—b—PMMA, PS—b—P(MMA—co—GMA) with different MMA contents were synthesized, their compositions were analysized by ~1H NMR spectroscopy. The quantitative analysis of the content the copolymer can be easily achieved by rneams of ~1H NMS. MMA with order of occuracy of 2% can be ascertained.