溶胶-凝胶法制备二氧化钛/羧基碳纳米管(Ti O2/MWNTs-COOH),接枝壳聚糖并通过乙烯基三甲氧基硅烷化反应制备生物碳基质功能单体-乙烯基碳纳米管双功能基壳聚糖。利用Cu2+为模板离子,通过交联反应制备生物基质新型离子印迹聚合物(Novel i...溶胶-凝胶法制备二氧化钛/羧基碳纳米管(Ti O2/MWNTs-COOH),接枝壳聚糖并通过乙烯基三甲氧基硅烷化反应制备生物碳基质功能单体-乙烯基碳纳米管双功能基壳聚糖。利用Cu2+为模板离子,通过交联反应制备生物基质新型离子印迹聚合物(Novel ion imprinted polymer on biological carbon matrix,NIIPs-BCM)。傅里叶变换红外光谱(FT-IR)、固体核磁共振波谱(CP/MAS 13C-NMR)和扫描电镜(SEM)对中间产物和NIIPs-BCM进行结构表征,表观形貌分析法考察生物降解性能并利用同步热分析仪(DSC-TG)进行热稳定性测试,原子吸收光谱仪(AAS)进行离子印迹聚合物识别性能研究。结果表明,成功制备了对金属Cu2+具有选择性吸附的NIIPs-BCM。NIIPs-BCM具有显著生物降解性,热稳定性分析结果表明NIIPs-BCM具有良好的热稳定性,热失重率为67%。原子吸收法分析NIIPs-BCM的离子识别性能表明,其对Cu2+的特异识别性明显优于非离子印迹聚合物(Non-novel ion imprinted polymer on biological carbon matrix,NNIIPs-BCM),识别理论符合静态等温吸附方程。展开更多
New chiral molecular tweezers 1~3 were designed and synthesized by using deoxycholic acid as spacer. Their structures were confirmed by IR, 1HNMR and elemental analysis. The recognition properties were investigated b...New chiral molecular tweezers 1~3 were designed and synthesized by using deoxycholic acid as spacer. Their structures were confirmed by IR, 1HNMR and elemental analysis. The recognition properties were investigated by UV Vis spectra titration in CHCl 3 at 25℃. The results indicated that molecular tweezers 1~3 possess the ability to complex with aromatic amine. The size/shape fit and geometric complementary relationship between receptor and substrate play the key roles in recognition process.展开更多
文摘溶胶-凝胶法制备二氧化钛/羧基碳纳米管(Ti O2/MWNTs-COOH),接枝壳聚糖并通过乙烯基三甲氧基硅烷化反应制备生物碳基质功能单体-乙烯基碳纳米管双功能基壳聚糖。利用Cu2+为模板离子,通过交联反应制备生物基质新型离子印迹聚合物(Novel ion imprinted polymer on biological carbon matrix,NIIPs-BCM)。傅里叶变换红外光谱(FT-IR)、固体核磁共振波谱(CP/MAS 13C-NMR)和扫描电镜(SEM)对中间产物和NIIPs-BCM进行结构表征,表观形貌分析法考察生物降解性能并利用同步热分析仪(DSC-TG)进行热稳定性测试,原子吸收光谱仪(AAS)进行离子印迹聚合物识别性能研究。结果表明,成功制备了对金属Cu2+具有选择性吸附的NIIPs-BCM。NIIPs-BCM具有显著生物降解性,热稳定性分析结果表明NIIPs-BCM具有良好的热稳定性,热失重率为67%。原子吸收法分析NIIPs-BCM的离子识别性能表明,其对Cu2+的特异识别性明显优于非离子印迹聚合物(Non-novel ion imprinted polymer on biological carbon matrix,NNIIPs-BCM),识别理论符合静态等温吸附方程。
文摘New chiral molecular tweezers 1~3 were designed and synthesized by using deoxycholic acid as spacer. Their structures were confirmed by IR, 1HNMR and elemental analysis. The recognition properties were investigated by UV Vis spectra titration in CHCl 3 at 25℃. The results indicated that molecular tweezers 1~3 possess the ability to complex with aromatic amine. The size/shape fit and geometric complementary relationship between receptor and substrate play the key roles in recognition process.