Chen Yuanli, Chen Yuxia, Li Yi, Zhang Ming, Liu Xiaojuan, Li Baozong, Yang Yonggang
Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, PR China.
J Nanosci Nanotechnol. 2011 May;11(5):4073-8. doi: 10.1166/jnn.2011.3825.
A chiral cationic low-molecular-weight amphiphile, derived from L-phenylalanine, was synthesized. It can gel benzene, toluene and chlorobenzene and cause viscous liquids in deionized water and tetrahydrofuran. Ethenylene-silica hollow nanospheres with a single-layer of pore channels in their shells were prepared using the self-assemblies of this amphiphile as templates. Small angle X-ray diffraction pattern indicated that the pore channels did not arrange in a high degree of order. The formation of this hierarchical porous structure was studied by taking TEM images after different reaction time. It was found that the morphologies of the amphiphile-ethenylene-silica assemblies changed gradually during the sol-gel transcription process. Moreover, silica hollow spheres were also prepared using this amphiphiles.
合成了一种源自L-苯丙氨酸的手性阳离子低分子量两亲物。它能使苯、甲苯和氯苯凝胶化，并在去离子水和四氢呋喃中形成粘性液体。以这种两亲物的自组装体为模板，制备了壳层具有单层孔道的乙烯基-二氧化硅空心纳米球。小角X射线衍射图谱表明孔道排列的有序度不高。通过在不同反应时间后拍摄透射电镜图像，研究了这种分级多孔结构的形成过程。发现在溶胶-凝胶转录过程中，两亲物-乙烯基-二氧化硅组装体的形态逐渐变化。此外，还用这种两亲物制备了二氧化硅空心球。
