改性没食子酸交联壳聚糖膜材料的制备与性能

郭林新; 李容; 郭蕊; 张如苹; 张乐; 逯少妍

doi:10.11949/0438-1157.20260340

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改性没食子酸交联壳聚糖膜材料的制备与性能

材料化学工程与纳米技术 | 更新时间：2026-05-11

- 改性没食子酸交联壳聚糖膜材料的制备与性能
- Preparation and properties of modified gallic acid crosslinked chitosan membrane materials
- 化工学报 2026年
- 作者机构：
  
  1.安康学院秦巴中药资源开发与利用陕西省高校工程研究中心，安康 725000
  2.陕西理工大学陕南秦巴山区生物资源综合开发协同创新中心，汉中 723001
  3.西北农林科技大学生命科学学院，杨凌 712100
- 作者简介：
  
  郭林新（1990—），男，博士，副教授，glx@aku.edu.cn
- 基金信息：
  
  陕西省创新能力支撑计划项目(2025ZC-KJXX-14);陕西省教育厅重点科学研究计划协同创新项目(23JY019);陕西省高校第五批“青年杰出人才支持计划”(2022JCRC01);陕西省大学生创新训练计划项目(S202411397079);安康市创新人才攀登计划项目(AK2024PD-ZQN-01);秦巴中药资源开发与应用陕西高校青年创新团队
- DOI：10.11949/0438-1157.20260340
  中图分类号： TQ28
- 收稿：2026-03-20，
  
  修回：2026-05-09，
  
  录用：2026-05-11，
- 稿件说明：
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郭林新, 李容, 郭蕊, 等. 改性没食子酸交联壳聚糖膜材料的制备与性能[J/OL]. 化工学报, 2026.

GUO Linxin, LI Rong, GUO Rui, et al. Preparation and properties of modified gallic acid crosslinked chitosan membrane materials[J/OL]. CIESC Journal, 2026.
郭林新, 李容, 郭蕊, 等. 改性没食子酸交联壳聚糖膜材料的制备与性能[J/OL]. 化工学报, 2026. DOI： 10.11949/0438-1157.20260340.

GUO Linxin, LI Rong, GUO Rui, et al. Preparation and properties of modified gallic acid crosslinked chitosan membrane materials[J/OL]. CIESC Journal, 2026. DOI： 10.11949/0438-1157.20260340.

摘要

为提高壳聚糖膜材料的性能，在保留没食子酸固有酚羟基的同时引入甲酰基，得到改性没食子酸，并以其为交联剂制备交联壳聚糖膜材料。通过条件优化，改性产物的最高产率可以达到55.3%，并通过核磁波谱确定了产物结构。将改性产物与壳聚糖交联后，交联膜的拉伸强度达19.7 MPa，较壳聚糖膜提高了91.3%。同时，交联膜在200~379 nm紫外区的透过率小于1%，紫外屏蔽能力显著。醛基与氨基间产生共价交联作用，使得材料的红外光谱氨基吸收峰红移且强度减弱。此外，交联膜材料具有良好的抗氧化性能、抑菌性能及细胞相容性，并对蓝莓的包装储藏具有较好的保鲜效果。改性没食子酸能有效提升壳聚糖膜材料的功能活性，从而为生物质功能材料的开发提供参考。

Abstract

In order to improve the performance of chitosan membrane materials

this study introduced formyl group while retaining the inherent phenolic hydroxyl group of gallic acid to obtain modified gallic acid

and used it as a cross-linking agent to prepare cross-linked chitosan membrane materials. By optimizing the conditions

the highest yield of the modified product can reach 55.3 %

and the structure of the product was determined by NMR spectroscopy. After cross-linking the modified product with chitosan

the tensile strength of the crosslinked film reached 19.7 MPa

which was 91.3 % higher than that of the chitosan film. At the same time

the transmittance of the crosslinked film in the ultraviolet region of 200 nm to 379 nm is less than 1 %

and the ultraviolet shielding ability is remarkable. The covalent cross-linking between the aldehyde group and the amino group causes the amino absorption peak of the infrared spectrum of the material to be red-shifted and the intensity to be weakened. In addition

the crosslinked membrane material had good antioxidant properties

antibacterial properties and cell compatibility

and has a good preservation effect on blueberries. Modified gallic acid can effectively improve the functional activity of chitosan membrane materials

thus providing a reference for the development of biomass functional materials.

关键词

Keywords

references

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