Lignin-Based Hydrogel Synthesized by Thiol-Ene Click Chemistry
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초록
내용
Recently, there has been rapidly growing interest in synthesis of the polymer-based materials platform which can replace petroleum-based chemicals with biomass. Lignin is largely produced biomass from a wood-processing, and it is considered as one of easily accessible biomass. The lignin is a natural polymer containing a large amount of functional groups such as phenol and alcohol which can be utilized to introduce specific functionalities. To create new materials by utilizing the functionalities, we demonstrate a simple but efficient chemical route to incorporate thiol groups in lignosulfonate. The thiol-functionalized lignosulfonate was further used to form hydrogel with biopolymers of biocompatible polymers having alkene functionalities. The rheological studies clearly show that introduced thiol groups are involved in hydrogel formation with light illumination.