摘要
采用分子自组装印迹技术合成了一种对1-氨基萘有高度选择性的分子印迹聚合物新材料。应用紫外光谱、红外光谱、X射线光电子能谱和1H核磁共振波谱等研究了印迹聚合物的结合位点和识别机理。结果表明模板分子与功能单体通过氢键作用形成1:1型配合物,配合物的稳定常数K=5.537×104L/mol。1-氨基萘分子氨基上的氮原子是质子接受体,功能单体甲基丙烯酸分子羧基上的氢原子是氢键的质子给予体,是与1-氨基萘形成氢键作用的选择性识别位点。利用平衡吸附试验研究了印迹聚合物的结合特性,表明印迹聚合物对1-氨基萘分子具有特异的识别性能。
A new 1-naphthalenamine（NNA） specific molecularly imprinted polymer （MIP） was synthesized based on non-covalent interaction. The molecular recognition characteristics of the template polymer were evaluated by UV,IR,XPS and ^1H NMR. The NNA-MAA complexes of 1 ： 1 mole ratio were obtained by nitrogen bonding and the complexes possessed better stabilization （K= 5.537 × 10^4L/mol）. Furthermore, hydrogen atom of the amino group in 1-naphthalenamine is hydrogen-bond acceptors. Hydrogen atom of the lactam group in methacrylic acid is hydrogen-bond donor, being the predominant binding sites interacting with 1-naphthalenamine. The adsorption characteristics of MIP was evaluated by equilibrium adsorption experiment. The results indicate that MIP performs highly selectivity to 1-naphthalenamine.
出处
《光谱实验室》
CAS
CSCD
北大核心
2010年第2期761-765,共5页
Chinese Journal of Spectroscopy Laboratory
基金
安徽中烟工业公司科技创新项目(No.20091009)
关键词
分子印迹聚合物
1-氨基萘
氢键
分子识别
Molecularly Imprinted Polymer
1-Naphthalenamine
Hydrogen-Bond
Molecular Recognition
