In my case, I am trying to prepare an interpenetrating composite hydrogel composed of PANI and another polymer, what I have seen in the literature review they used the monomer (aniline) can I do it with polyaniline (emeraldine salt)?
Hello Amira S. Mohammed Ali ,
you could use the salt and polymerize your hydrogel from it's monomer around the polyaniline. However, polyaniline is not soluble and is normally only dispersed. Thus you will obtain small particles in a hydrogel matrix when following this procedure. The inverse case, in which aniline is used and the hydrogel is synthesized first, there two polymers may be mixed on a molecular level (or might separate if not hindered by crosslinking or something similar).
Placed in the context of the extensive literature on this system, the heterogeneous organisation of the polymer within the hydrogel network structure, and can be accounted for by the different polymerization behavior of the monomer and crosslinker.
The method reported offers a general strategy to design biocompatible high-strength hydrogels for tissue engineering scaffolds by copolymerizing monomer containing dipole–dipole pairing with other hydrophilic monomer.
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