Why won't EDC dissolve in Poly(acrylic acid)?

I'm trying to thiolate Poly(Acrylic acid) (PAA) with L-cysteine using EDC (or EDAC), however prior to the addition of L-cys, when I add EDC to PAA large clumps form in solution. 1g of PAA was...

02 February 2023 6,703 2 View