论文部分内容阅读
以N,N-二甲基甲酰胺(DMF)为溶剂,通过气流-静电纺丝法制备了具有pH响应性能的丙烯腈-丙烯酸共聚物(Poly(AN-co-AA))超细纤维。利用扫描电镜(SEM)对超细纤维形貌进行表征,研究了聚合单体中丙烯酸(AA)的含量、纺丝溶液中L-苯丙氨酸(L-Phe)的含量和浸泡时间对Poly(AN-co-AA)超细纤维形貌的影响,并从缓冲溶液的pH值及其与纤维直径变化的可逆性等方面研究了Poly(AN-co-AA)超细纤维的pH响应性能,确定了制备具有pH响应性能的Poly(AN-co-AA)超细纤维的最佳工艺参数。
Poly (AN-co-AA) microfibers with pH-responsive properties were prepared by flow-electrospinning using N, N-dimethylformamide as solvent. The morphology of the ultrafine fibers was characterized by scanning electron microscopy (SEM). The content of acrylic acid (AA), the content of L-phenylalanine (L-Phe) and the immersion time in the polymerization solution were investigated. (AN-co-AA) ultrafine fibers. The pH response of poly (AN-co-AA) microfibers was also studied from pH value of buffer solution and its reversibility with fiber diameter. , The optimal process parameters for preparing Poly (AN-co-AA) microfibers with pH response were determined.