Table 2. Solubility of the PHAs and PBOs

polymer code Solventa
DMAc NMP DMF DMSO Pyridine THF TFA H2SO4
PHA IPHA-1 ○(L) ○(L) ○(L) ○(L) ×
IPHA-2 ×
IPHA-3 ×
IPHA-4 ×
IPHA-5 ×
IPHA-6 ×
PBO IPBO-1 × × × × × × ×
IPBO-2 × × × × × × ×
IPBO-3 × × × × × × ×
IPBO-4 × × × × × ×
IPBO-5 × × × × × ×
IPBO-6 × × × × × ×
○ : soluble, △ : partially soluble, × : insoluble, ○(H) : soluble on heating, ○ (L) : soluble with LiCl, DMF : N,N-dimethyformamide, DMSO : dimethylsulfoxide, THF : tetrahydrofuran, TFA : trifluoroacetic acid
solubility was tested with 10 mg sample in 1mL solvent