| 초록 |
Catechol functional group of dopamine (3,4-dihydroxyphenethylamine) is well known for ability to form strong adhesive bonds to inorganic and organic surfaces in aqueous environments. In this work, Novel adhesive polyaspartamide polymer and gel containing catechol group was synthesized from polysuccinimide (PSI) through the successive aminolysis of PSI with quantitative ethylenediamine (EDA) and dopamine (DOP). The composition of the prepared copolymer was analyzed by 1H-NMR. The UV-visible spectrophotometer analysis of polyaspartamide derivatives in the presence of oxidizing reagents reveals the formation of DOPA-quinone, resulting from oxidation of DOP end-groups. In addition, gel transition was observed as a function of oxidant concentration, which was elucidated by dynamic viscoelastic measurement. These novel adhesive polymers and gels have potential for biomedical application including adhesives and surface modification. |
