Table 3.

Known solubilities of silk-mimetic polymers discussed in this work in tetrahydrofuran (THF), N-methyl-2-pyrrolidone (NMP), dimethylformamide (DMF), dimethylsulfoxide (DMSO), dimethylacetamide (DMAC), formic acid (FA), chloroform (CHCl₃), dichloroacetic acid (DCA), trifluoroacetic acid (TFA), hexafluoroisopropanol (HFIP), trifluoroethanol (TFE), and propylene glycol monoether acetate (PGMEA). Only positively confirmed solubilities are shown; blank spaces indicate unknown solubility.

Polymer	THF	NMP	DMF	DMSO	DMAC	CHCl3	DCA	TFA	HFIP	TFE	PGMEA
GAGA-PEG [97]		+		+			+			+
ALA-PEG [96]							+		+
(A)5-PI [101]						+ a
GAGA-pTHF [107,108]	+		+	+
PBLG-PTMEG [110]			+						+
ALA-PCL [112]				+				+
(A)x-(G-r-L)y [117]		+			+
poly(APA-b-MA) [92]				+							+
AN-co-silk fibroin [128]			+ b

^a (A)₅-PI is soluble in a mixture of CHCl₃ with ClCH₂CH₂OH; ^b AN-co-silk fibroin is not soluble in DMF with silk fibroin content of 0.065 or above.