Nanogel is an important kind of biomaterials applied for wound dressings, drug delivery, medical diagnostics and biosensors. The properties of nanogels closely depend on the density of the crosslinking network. In this study, the role of triethanolamine (TEOA) in the effect on the crosslinking degree of nanogels based on poly(ethylene glycol) diacrylate (PEGDA) was investigated and illustrated. The effect of TEOA on the process of photopolymerization at 532 nm and properties of the nanogels was systematically investigated by using UV-vis spectroscopy, FT-IR spectroscopy, ¹H NMR, DLS, SEM, AFM and DSC. In brief, the double-bond conversion of photopolymerization and the crosslinking degree of nanogels can be effectively regulated by TEOA.

中文翻译：

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TEOA对532 nm光聚合过程及纳米凝胶性能的影响

纳米凝胶是一种重要的生物材料，应用于伤口敷料、药物输送、医学诊断和生物传感器。纳米凝胶的性质与交联网络的密度密切相关。在这项研究中，研究并说明了三乙醇胺（TEOA）对基于聚（乙二醇）二丙烯酸酯（PEGDA）的纳米凝胶交联度的影响。采用紫外-可见光谱、红外光谱、¹ H NMR、DLS、SEM、AFM和DSC系统研究了TEOA对532 nm光聚合过程和纳米凝胶性能的影响。总之，光聚合的双键转化和纳米凝胶的交联度可以通过TEOA有效调节。