I am trying to determine the degree of syndiotacticity of a polymer. But the polymer cannot be dissolved in any solvent maybe because of crosslinking. So is there any other way to find out the polymer tacticity except C13 NMR? Thank you.
Just curious, if you're looking at things like polypropylene for example, you may have to heat the solvent/polymer mixture to get it to dissolve first - since crystals take a lot longer to dissolve in most cases, than the amorphous phase of your sample, and I assume your sample is semicrystalline. Solution NMR is the best technique in my opinion for getting backbone tacticity. If you can't use it, then you would need to take advantage of the specifics of your polymer backbones - there may be specific techniques that only apply to that polymer that you can use (not knowing your polymer identity, any suggestion from the forum would be a shot in the dark...)
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