Solvents Fully Dissolving PGMA (Mw 40000–80000)

Fully soluble solvents: THF, 1,4-dioxane, acetone, MEK, cyclohexanone, MIBK, dichloromethane, chloroform, DMF, DMAc, ethyl acetate, butyl acetate, PMA.

All below solvents can form clear, transparent PGMA solutions at room temperature or gentle heating (≤60 °C):

1. Ketones (Most widely used in coatings)

• Acetone

• Methyl Ethyl Ketone (MEK / Butanone)

• Cyclohexanone

• Methyl Isobutyl Ketone (MIBK)

2. Cyclic Ethers (GPC standard solvent)

• Tetrahydrofuran (THF)

• 1,4-Dioxane

3. Halogenated aliphatic solvents

• Dichloromethane (Methylene chloride)

• Chloroform

4. Polar amide aprotic solvents

• N,N-Dimethylformamide (DMF)

• N,N-Dimethylacetamide (DMAc)

5. Esters (Coating diluents)

• Ethyl acetate

• n-Butyl acetate

• Isobutyl acetate

• Propylene glycol methyl ether acetate (PMA)

Supplementary Notes

1. Dissolution speedEthers (THF, dioxane) > small molecular ketones (acetone, MEK) > esters. Esters dissolve slower, slight heating speeds up dissolution.

2. RestrictionDo not heat above 100 °C; high temperature triggers epoxy self-crosslinking and gel precipitation.

3. Mixed solvent schemeAcetone + butyl acetate is a common compound solvent system for coating production.

4. Contrast reminderToluene, xylene, isopropanol, DMSO only swell PGMA, cannot fully dissolve it into clear liquid. Water, ethanol, hexane are completely insoluble.