Solid-state crosslinking of cellulose with biodegradable conjugation
발표자
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초록
내용
Plastics are causing significant environmental issues with few solutions available. Before plastics, polysaccharides with hexagonal ring structures and hydrogen bonds were used but required toxic chemicals for processing. This study aims to address these issues using eco-friendly biodegradable reactions. We used various biodegradable celluloses to synthesize hydrogels via Directional Melt Crystallization (DMC) method, forming materials with continuous pores. Following the formation of a porous structure, a thermal cross-linking process was performed using a multifunctional cross-linking agent, BTCA (butanetetracarboxylic acid). By varying temperature and time, the shifts in FT-IR peaks confirms the cross-linking reactions. The tempearature-swelling ratio graph, it shows that hydroxypropyl cellulose (HPC) has a Lower Critical Solution Temperature (LCST) at 45 °C. This system shows promise for developing hydrogels without having microplastics problems, offering a sustainable alternative to traditional plastics.