论文部分内容阅读
利用Si-H封端的聚二甲基硅氧烷(PHMS)与烯丙基聚氧乙烯聚氧丙烯醚(F6)的硅氢化加成反应合成聚醚-b-聚硅氧烷中间体(PESO),再用马来酸酐对其进一步改性,合成了羧基化聚醚有机硅(CPES),用红外光谱(IR)、核磁共振氢谱(~1 H-NMR)确认了CPES的结构,然后用原子力显微镜(AFM)对基于CPES及其构筑的超分子膜形貌进行了研究。结果表明,由CPES与N-β-氨乙基γ-氨丙基聚二甲基硅氧烷(ASO-1)在乙酸乙酯稀溶剂介质中自组装构筑的超分子膜CPES/ASO-1,其形貌完全不同于结构基元CPES与ASO-1,在其表面不仅有众多细小亮斑存在,而且还分布有一定数目形体较大、环形亮斑套有小亮斑的分子聚集体。其原因可能是离子化后的CPES胶束在ASO-1分子周围发生单层或多层吸附、团聚而产生的。
Polyether-b-polysiloxane intermediates (PESO) were synthesized by hydrosilation reaction of Si-H terminated polydimethylsiloxane (PHMS) with allyl polyoxyethylene polyoxypropylene ether (F6) ), And then further modified with maleic anhydride to synthesize a carboxylated polyether silicone (CPES). The structure of CPES was confirmed by IR and 1H-NMR Morphology of supramolecular films based on CPES and their structures was investigated by atomic force microscopy (AFM). The results showed that CPES / ASO-1 was self-assembled by CPES and N-β-aminoethylγ-aminopropyl dimethicone (ASO-1) in a solvent- , Its morphology completely different from the structural elements CPES and ASO-1, not only in its surface there are many small bright spots exist, but also the distribution of a large number of larger, annular bright spots with small bright spots of molecular aggregates. The reason may be ionized CPES micelles in the ASO-1 molecules around single or multiple adsorption, agglomeration generated.