金膜表面聚丙烯酰吡咯膜的结构和表面形貌研究

Research about microstructure and surface topography of polyacrylamide-pyrrole film prepared on the surface of gold membrane

研究了一种拟用于SPR生物传感器的生物材料。为此,首先在金膜表面制备聚丙烯酰吡咯(PAP)膜,然后对膜的结构和表面形貌进行了研究。其中,制备PAP的方法是以丙烯酰氯和吡咯钾盐合成丙烯酰吡咯,然后以偶氮二异丁腈(AIBN)为引发剂,进行自由基聚合;金膜表面制备PAP膜的方法是:PAP溶于N,N-二甲基甲酰胺(DMF),然后旋涂到金膜上;最后,涂膜表面与吡咯在三氯化铁溶液中化学法聚合,形成聚合吡咯层。红外光谱可以看出,所得聚合物就是需要的产品;AFM非原位表面形貌图像和三维立体形貌图上显示,涂膜覆盖了金膜表面原有的小孔,表面粗糙度比纯金膜增大。

In order to study a biological materials for the SPR biosensor, the first polyacrylamide-pyrrole film was prepared on the surface of gold membrane, and then the membrane structure and surface topography were studied. The preparation of polypropylene-pyrrole （PAP） method was based on propylene chloride and potassium pyrrole-propylene synthesised pyrrole, and then to radical polymerization with azo-bis-isobutyronitrile （AIBN） as the initiator; polyacrylamidepyrrole film was prepared on the surface of gold membrane was： PAP solvated in N, N-dimethylformamide （DMF）, and then spin-coating to the gold membrane; Finally, the surface coating with pyrrole in the ferric chloride solution had chemical polymerization to form a polymer pyrrole layer. IR can be seen from polymer material that was needed products; AFM non-situ surface three-dimensional images and three-dimensional topography map displayed coating covered the original hole on gold film, surface roughness more than pure gold membrane.