Hydrogels Synthesized Using Copolymer-Tethered Lignin
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초록
내용
Recently, a polymeric material made from natural biomass have attracted interests as a sustainable material. In particular, lignin, a representative biomass generated as a biomass in pulp industry, receives a lot of attentions because of its abundance, rich chemical functionalities, CO2 neutrality, reinforcing properties, antioxidant and UV blocking abilities, as well as its environmental friendliness. However, due to its intrinsic structural heterogeneity, poor processability and chemical reactivity, the use of lignin for certain applications has been limited. Herein, we demonstrate chemical routes to tether copolymers of methyl methacrylate and methacrylic acid via grafting-from approach with atom transfer radical polymerization (ATRP). The resulting copolymers were further utilized to form functional hydrogels. The effect of the incorporation of lignin into the hydrogel to various properties of the hydrogel, such as stretchability and adhesiveness, is closely examined.