Hi,
I am trying to make 1000 mL of 2mM PVF solution. Can anyone suggest do I have to consider the mol wt of VF for determining the wight of PVF to be used.
It depends on, what do you mean by molarity in this case, and what is your purpose with setting the molarity. If you wan to have 2 mM vinylindene fluoride monomer (of course, in polymeric form), you have to use the molar weight of the monomer. If you want to have 2 mM PVDF POLYMER, yu have to know and use the numer average (!) molcular weight measured e.g. by GPC. Viscosit molecular weight (z-average) or weight-avergare molecular weight will not do.
It depends on, what do you mean by molarity in this case, and what is your purpose with setting the molarity. If you wan to have 2 mM vinylindene fluoride monomer (of course, in polymeric form), you have to use the molar weight of the monomer. If you want to have 2 mM PVDF POLYMER, yu have to know and use the numer average (!) molcular weight measured e.g. by GPC. Viscosit molecular weight (z-average) or weight-avergare molecular weight will not do.
I agree with Dr Banhegyi and the question require more clarification. Nevertheless, I think you have the PVF polymer and in this case you need to use the average Mw which normally written the container or if it is a unknown sample then use GPC to find out.
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