I want to study the molecular conformation of conjugated polyelectrolyte (CPE) using optical spectroscopy. Obviously a lot of people have used optical spectroscopy to study the structure of conjugated polymers, including this conjugated polyelectrolyte. However, they did in when the CPE is in aqueous solution. My question is that can I study its structure after it is dried using the same method? The basic method is to compare the results of (e.g. emission spectra) to decide if the structure has been changed.