Control of the morphology of micro/nanostructures of polycarbonate via electrospinning
Control of the morphology of micro/nanostructures of polycarbonate via electrospinning
复制标题
通过静电纺丝控制聚碳酸酯微/纳米结构的形貌
DOI：
10.1007/s11434-009-0241-0
复制
发表时间：
2009-08
期刊：
影响因子：
--
通讯作者：
蒋兴宇
中科院分区：
文献类型：
--
作者：
蒋兴宇
许多用于生物分析、组织工程支架、过滤和催化剂载体的应用都需要具有大比表面积的聚合物膜。聚碳酸酯(PC)由于其优异的机械性能和良好的生物相容性，是一种可能的候选材料。静电纺丝是一种简单有效的大规模制备大比表面积微/纳米纤维膜的方法。然而，如何控制电纺PC纤维的形态还没有得到系统的研究。我们描述了连续均匀的PC纤维的可控制备。我们在PC/氯仿溶液中加入了不同类型的表面活性剂，包括阴离子、两性、非离子和阳离子表面活性剂。只有阳离子表面活性剂才能成功地制备出均匀的PC纤维。通过对溶液粘度、表面张力、电导率等性能与电纺纤维形态的相关性分析，认为十六烷基三甲基溴化铵(CTAB)等阳离子表面活性剂的加入降低了PC纤维的粘度，是形成PC纤维的主要原因。均匀聚碳酸酯纤维的制备示范，为其他聚合物电纺加工成纤维提供了经验。
Many of the applications proposed for bioassays, scaffolds for tissue engineering, filtrations, and supports for catalysts require polymeric membranes with large specific surface areas. Polycarbonate (PC) is a possible candidate for these applications because of its excellent mechanical performance and good biocompatibility. Electrospinning is a simple and effective method for large-scale fabrication of micro-/nano- fibrous membranes with large specific surface areas. How to control the morphology of electrospun PC fibers, however, has not been systematically investigated. We describe the controllable fabrication of continuous and uniform PC fibers. We electrospin PC/chloroform solutions doped with different types of surfactants including anionic, zwitterionic, nonionic and cationic surfactants. Only cationic surfactants can lead to the successful fabrication of uniform PC fibers. After the analysis of the correlation between solution properties such as viscosity, surface tension, and conductivity and the morphology of electrospun fibers, we conclude that the addition of cationic surfactants such as cetane trimethyl ammonium bromide (CTAB) that leads to a decrease in viscosity is the main factor responsible for the formation of PC fibers. The demonstration of the fabrication of uniform PC fibers will lend experience to processing other polymers into fibers via electrospinning.
登录
查看更多内容
影响因子：
4.6
作者：
Kim, GM;Michler, GH;Pötschke, P
通讯作者：
Pötschke, P
影响因子：
5.5
作者：
Ye, P;Xu, ZK;Seta, P
通讯作者：
Seta, P
不同盐对聚丙烯腈（PAN）聚合物溶液静电纺丝的影响
影响因子：
3
作者：
Qin, Xiao-Hong;Yang, En-Long;Wang, Shan-Yuan
通讯作者：
Wang, Shan-Yuan
影响因子：
6.2
作者：
Ohkawa, Kousaku;Minato, Ken-Ichi;Yamamoto, Hiroyuki
通讯作者：
Yamamoto, Hiroyuki
影响因子：
56.9
作者：
McKee, MG;Layman, JM;Long, TE
通讯作者：
Long, TE