SAXS experiments were carried out to determine the conformation and structure of PII-2T in solution. A schematic of the SAXS experiment is shown in Figure . As our primary system we use a low MW PII-2T dissolved in chlorobenzene (CB). CB was chosen as it is a fairly good solvent commonly used in solution processing of conjugated polymers. Other common solvents such as chloroform, dichlorobenzene, and trichlorobenzene have too large absorption cross-sections making it difficult to collect data with good signal-to-noise ratio.