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在温和条件下利用嵌段共聚多肽聚(L-苯丙氨酸)-聚(γ-谷氨酸苄酯)(Phe20-b-PBLG50)仿生合成了复合空泡结构纳米孔二氧化硅.硅烷偶联剂氨苯基甲基三乙氧基硅烷(AMTS)作为中间媒介,一方面通过其苯环与多肽链段上的苯环之间形成π-π相互作用;另一方面通过硅氧烷与硅源发生共缩合,从而把多肽在溶液中自组装形成的囊泡结构通过二氧化硅转录并固定,微孔的形成归因于多肽的二级结构和有机胺小分子.提出了一个在温和条件下,通过嵌段多肽控制合成新颖结构多孔材料的新方法.
The composite hollow-walled structure nanoporous silica was synthesized under mild conditions using the block copolymer poly (L-phenylalanine) -poly (γ-glutamic acid benzyl ester) (Phe20-b-PBLG50) Coupling agent aminophenyl methyl triethoxysilane (AMTS) as an intermediary, on the one hand through its benzene ring and the polypeptide chain formed on the benzene ring π-π interaction; on the other hand through the siloxane With the silicon source co-condensation, so that the peptide self-assembly in the solution of the vesicle structure formed by the transcription and fixation of silica, the formation of micropores due to the secondary structure of the polypeptide and small organic amine molecules. Under mild conditions, the novel method of controlling the synthesis of novel structured porous materials via block polypeptides.