Improvement of chitosan water solubility by fumaric acid modification

编号 020034903

推送时间 20220627

研究领域 林产化工 

年份 2022 

类型 期刊 

语种 英语

标题 Improvement of chitosan water solubility by fumaric acid modification

来源期刊 Materials Letters

期 第349期

发表时间 20220601

关键词 Modification;  Thermal analysis;  Water solubility;  Polymers;  Fumaric acid;  Water-soluble chitosan; 

摘要 Chitosan is a natural biopolymer with widespread availability. Its absorption, biodegradability, and biocompatibility make it ideal for extensive application. However, the high molecular weight and the high degree of polymerization limit its water solubility at neutral pH. Water solubility can be improved through the transformation in chitosan properties. We aimed to enhance the physicochemical properties through the modification of low, medium, and high molecular weight chitosan by using fumaric acid. With increasing molecular weight of native chitosan, the modified chitosan showed a decrease in water solubility and thermal properties. According to the pH dependence study, the modified products showed higher water solubility than native chitosan in a wide pH range. Fourier transform infrared (FTIR) spectroscopy results proved the effectiveness of modification by fumaric acid. The enhanced water solubility of modified chitosan can maximize its application to the food, biomedical, and cosmetic industry.

服务人员 尚玮姣

服务院士 宋湛谦

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