Who has done the determination of polymers in vinyl acetate?
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Who has done the determination of polymers in vinyl acetate?
This post was last edited by Yang Qing on 2020-11-23 09:14. I misread the question; I’ll look it up online. After a quick search, it seems there are no testing methods specified by relevant standards. Due to my lack of familiarity with this industry, I cannot provide any relevant advice.
This kind of problem is unclear. Polymers in vinyl acetate are either polyvinyl acetate, or other polymers that are dissolved or dispersed in vinyl acetate. If it is polyvinyl acetate formed during the polymerization of vinyl acetate, then its viscosity changes can be used to correlate with the polymerization process; furthermore, near-infrared spectroscopy can be employed to monitor the progress of the reaction. However, when determining the molecular weight of copolymers, gel permeation chromatography is generally used; that is, GPC is employed for the measurement. It can also be determined via viscosity, but the resulting molecular weights differ.
Find a manufacturer in the vinylon industry; there are quite a few such companies in China, about a dozen of them, and all of them have complete sets of analysis methods.
Find a manufacturer in the vinylon industry; there are quite a few such companies in China, about a dozen of them, and all of them have complete sets of analysis methods.