电磁传导性水凝胶的制备及其性能研究

Preparation and properties of electromagnetic conductive hydrogel

电磁传导性水凝胶被广泛应用于组织工程、软致动器、药物传递、电磁干扰屏蔽等方面,在生物医学、传感器等领域有着巨大的应用潜力。采用仿贻贝微凝胶氧化还原引发的方式构建具有电磁响应的水凝胶网络。首先采用紫外光微乳液聚合的方法制备仿贻贝微凝胶;其次,以仿贻贝微凝胶和纳米Fe_(3)O_(4)为引发体系,以丙烯酰胺和4-苯乙烯磺酸钠作为小分子单体,以二丙烯酸聚乙二醇酯作为交联剂,采用氧化还原引发聚合的方法构建水凝胶体系,并对水凝胶进行结构表征。结果表明,制备的水凝胶具有一定的弹性且具有电磁传导性能,在柔性可穿戴器件之中有潜在的应用价值。

Hydrogels with electromagnetic conductivity are widely used in tissue engineering,soft actuators,drug delivery,electromagnetic interference shielding and other fields.They have great potential application in biomedical,sensor and other areas.Therefore,we used mussel-inspired microgel to construct an electromagnetic responsive hydrogel by redox initiation method.Firstly,we prepared a mussel-inspired microgel by microemulsion polymerization under UV-initiated.Secondly,we used mussel-inspired microgel and nano-Fe_(3)O_(4) as the initiating system,acrylamide and sodium 4-phenylethen sulfonate as the small molecule monomers,and polyethylene glycol diacrylate as the crosslinking agent to construct the hydrogel system by redox-initiated polymerization method.Finally,we characterized the structure of the hydrogel.The results showed that the prepared hydrogel exhibited certain elasticity and electromagnetic conductivity,which has potential application value in flexible wearable devices.