Yes, there are thermoplastic water-soluble polymers. One example of such a polymer is polyvinyl alcohol (PVA), which is a water-soluble synthetic polymer that can be processed as a thermoplastic. PVA has many industrial applications, including in the production of water-soluble films, adhesives, and coatings.
Another example of a thermoplastic water-soluble polymer is polyethylene oxide (PEO), which is also known as polyethylene glycol (PEG). PEO is commonly used as a thickener, binder, and lubricant in a variety of industries, including pharmaceuticals, cosmetics, and food.
Other thermoplastic water-soluble polymers include polyvinylpyrrolidone (PVP), carboxymethyl cellulose (CMC), and hydroxypropyl methylcellulose (HPMC). These polymers have a range of properties and applications, including as emulsifiers, stabilizers, and drug delivery agents.
VAE as watersolluble polymer
VAE is the internally plasticized version of PVA (Or PVAC). This copolymer is made with ethylene to make it softer and acts as an internal plasticizer. Exernal plasticizers in PVA could migrate. Where VAE don’t have this problem. VAE is not the same as EVA. While VEA is a thermoplastic solid, which is used for hot melt adhesives. VAE powder (DPP) is potentially one of the raw materials to make watersolluble hot melt adhesives.