Solubility behavior of PAMs expressed by dissolution time and inherent viscosity^a.

Solubility						η inh (dL g−1)
	DMSO	DMAc	DMF	m-cresol	H2SO4 conc.	DMAc
PAM-I	Part. sol.	Sol. in >180 min.	Ins.	Ins.	Sol. in 40 min.	0.32
PAM-II	Part. sol.	Sol. in 15 min.	Part. sol.	Sol. in 40 min.	Sol. in 40 min.	0.20
PAM-III	Part. sol.	Sol. in >180 min.	Ins.	Sol. in 40 min.	Sol. in 180 min.	0.14
PAM-IV	Part. sol.	Sol. in 15 min.	Sol. in 15 min.	Sol. in 40 min.	Sol. in >180 min.	0.10

^aIns: insoluble; Part. sol.: partially soluble; Sol.: soluble; η_inh: inherent viscosity measured at 25 °C (c = 0.5 g dL⁻¹).