氨基硅油和羧基硅油自组装超分子膜形貌及成膜性

以氨基硅油（ASO）和羧基硅油（CAS）为构筑基元,在乙酸乙酯溶液中自组装形成超分子聚集体ASO/CAS。以单晶硅和棉纤维织物作载膜基质,用原子力显微镜（AFM）、场发射扫描电镜（FESEM）和X射线光电子能谱（XPS）等对ASO/CAS的成膜性及膜形貌进行研究。结果表明,ASO/CAS在单晶硅上形成的膜微观形貌呈规则...

Film Morphology and Film-Forming Ability of Supramolecule Self-Assembled with Amino Polysiloxane and Carboxyl Polysiloxane

The self-assembled supramolecular congeries(ASO/CAS) was constructed by using N-β-aminoethyl-γ-aminopropylpolydimethylsiloxane(ASO) with carboxyl polysiloxane(CAS) as architecture units in diluted ethyl acetate solution.Film morphology and film-forming ability of the ASO/CAS anchored on an oxidized silicon wafer and cotton fiber substrates were investigated and characterized by atomic force microscope(AFM),field emission scanning electron microscope(FESEM),Xray photoelectron spectroscopy(XPS) and other instruments.Experimental results indicate that ASO/CAS film on the wafer surface is very heterogeneous.There is many alveolate patterns on the film surface.The root mean square roughness(Rq.) is 0.862 nm in 2 μm×2 μm scanning field.The fabric surface anchored with ASO/CAS supramolecular film causes the stripes or grooves to weaken or disappear.And the surface is smoother than that of the control sample.In addition,the contact angle of the cotton fiber treated by ASO/CAS is 89.5°.And that is about 0° in the untreated case.The ASO/CAS film brings fiber from hydrophile to hydrophobe.XPS analysis of ASO/CAS films on cotton fiber surface shows that the electrostatic interaction is confirmed existence from ASO and CAS to the ASO/CAS.