COALESCING CARBOXYMETHYLCHITOSAN-BASED MATERIALS

摘要

A high molecular mass cationic polymer material has a first state which includes at least two separate but adjacent surfaces and a second state in which the polymer material consists of a homogeneous body. The material transitions from the first state to the second state upon hydration. Preferred polymer materials include carboxymethylchitosan. In a preferred preparation method, chitosan is mixed with a solution of base and chloroacetic acid in a mixture of water and alcohol, preferably ethanol.