分子印迹聚合物选择性降低烟气中稠环芳烃类物质

以芘(PYR)为模板，由热引发本体聚合合成了芘分子印迹聚合物(MIP)，考察了印迹聚合物的选择性吸附性能，采用Scatchard模型分析了印迹聚合物的结合特性，用离线固相萃取实验考察了印迹聚合物对同类底物的吸附能力，并将芘分子印迹聚合物应用到卷烟滤嘴中，用GC/MS法考察了卷烟主流烟气中稠环芳烃类物质释放量的变化。 结果表明，芘分子印迹聚合物具有选择性降低卷烟烟气中稠环芳烃类物质的功能，当MIP添加量为1.5 mg时，能将卷烟烟气中的苯并[a]芘(B[a]P)、苯并(a)蒽(B[a]A)和苣(CHR)的释放量分别降低31.08%、25.69%和27.33%。

Reducing Polycyclic Aromatic Hydrocarbons in Cigarette Smoke by Pyrene Molecular Imprinted Polymers

The molecularly imprinted terpolymer was synthesized using pyrene as the template molecules by bulk polymerization. The adsorption ability and selectivity of the polymer were investigated by selectivity experiment. Scatchard analysis was employed to study the binding characteristics of molecularly imprinted polymer(MIP). Adsorption of polycyclic aromatic hydrocarbons(PAHs) was carried out to verify the interaction of MIP by solid phase extraction. The PAHs contents in the smoke of cigarette samples added with the MIPs to the filter were analyzed by GC/MS. The results show that the PYR-MIP is superior in terms of removing more than about 28% PAHs in the tobacco smoke. And the reduction rate of benzo[a]pyrene(B[a]P), benz(a)anthracene(B[a]A) and chrysene(CHR) are 31.08%, 25.69% and 27.33%, respectively, compared the commercial filter tip.