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采用聚醚胺封端聚硅氧烷(BPEAS)与马来酸酐(MAn)开环反应,合成了端羧基聚醚聚硅氧烷(CPSA),分别以CPSA为阴离子构建基元、杀菌性长碳链季铵基聚醚聚硅氧烷(QPEPS)为阳离子构建基元,以异丙醇为介质,通过静电作用进行超分子自组装,构建了一种新型超分子CPSA/QPEPS.通过红外光谱(FTIR)、核磁共振氢谱(~1H-NMR)对CPSA的结构进行表征,用白度仪、柔软度仪、织物折皱弹性仪、接触角仪、酶标仪等仪器对超分子CPSA/QPEPS的应用性能进行了研究,并用场发射扫描电镜(FESEM)、原子力显微镜(AFM)等对CPSA/QPEPS的膜形貌进行了观察.结果表明当m(QPEPS)/m(CPSA)=1∶1时,经CPSA/QPEPS整理过的棉织物,其弯曲刚度显著降低,静态吸水时间仅为4.39 s,且织物对大肠杆菌和金黄色葡萄球菌的抑菌率分别达到了71%.其次,超分子CPSA/QPEPS具有良好的成膜性,AFM观察其膜表面呈现出连续的山脉状形貌,在5μm×5μm扫描范围内CPSA/QPEPS膜的表面均方根粗糙度(R_q)达到了2.57 nm.
Polyether amine terminated polysiloxane (BPEAS) and maleic anhydride (MAn) ring-opening reaction, synthesis of a carboxyl end group polyether polysiloxane (CPSA), CPSA anionic building blocks, long sterilizing A quaternary ammonium polyetherpolysiloxane (QPEPS) was used as the cationic building block, and a new type of supramolecular CPSA / QPEPS was constructed by isoprene self-assembly using isopropanol as mediator. ) And 1H-NMR were used to characterize the structure of CPSA. The application of supramolecular CPSA / QPEPS with a whiteness meter, a softness tester, a fabric wrinkle elastic tester, a contact angle meter, a microplate reader and the like The film morphology of CPSA / QPEPS was observed by field emission scanning electron microscopy (FESEM) and atomic force microscopy (AFM). The results showed that when m (QPEPS) / m The flexural rigidity of CPSA / QPEPS-treated cotton fabric was significantly lower, the static water absorption time was only 4.39 s, and the antibacterial activity of fabric against Escherichia coli and Staphylococcus aureus were 71%, respectively.Secondly, QPEPS has good film-forming properties, AFM observed the surface of the film showed a continuous mountain-like morphology, in the 5μm × 5μm Within the range described CPSA / QPEPS film surface root mean square roughness (R_q) reached 2.57 nm.