Iodine povidone is a complex of iodine and the polymer povidone. I am wondering if one were to heat it enough, the iodine would sublimate and could be collected. Normally iodine boils at 184.3 °C, according to wikipedia.
A video of how the procedure might work, except iodine crystals would replaced with boiled down iodine povidone: https://www.youtube.com/watch?v=4fAOI6BeMZY
This can be used to purify iodine, so from my understanding, you would be able to vaporize the iodine and leave the polymer behind.
Does the complex with povidone change how this would work?
I apologize if my question is ignorant, as I do not have a great understanding of how complexes work.