Why does EVA alcoholysis product evoh fail to dissolve in DMSO when determining nuclear magnetism?

蔡少康 Cai @caishaokang-Cai

22 December 2023 0 8K Report

使用购买的EVA（VA含量40%）产品，在甲苯溶液中溶解，然后添加了氢氧化钠和醇的混合溶液，浓度大概有1mol/l和0.25mol/l的。

产品测试红外结果较为正常，但是在DMSO中一直无法溶解，困扰了很久。有没有做这方面研究的大佬可以解答一下或者讨论一下。是否自己合成的EVA再去做EVOH会好溶于dmso一些。

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