McCann Jesse T, Marquez Manuel, Xia Younan
Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, USA.
J Am Chem Soc. 2006 Feb 8;128(5):1436-7. doi: 10.1021/ja056810y.
Highly porous fibers of various polymers were created by electrospinning with a modified collector. A bath of liquid nitrogen was used to freeze the fibers, inducing a phase separation between the polymer and the solvent. When the solvent was removed in vacuo, highly porous fibers were obtained. Poly(styrene), poly(acrylonitrile), poly(vinylidene fluoride), and poly(epsilon-caprolactone) were all electrospun into porous fibers using this simple method. These porous fibers have a range of potential applications in encapsulation, controlled release, superhydrophobic coating, and lightweight reinforcement.
通过使用改良的收集器进行静电纺丝，制备出了各种聚合物的高度多孔纤维。用液氮浴冷冻纤维，促使聚合物与溶剂之间发生相分离。当在真空中除去溶剂后，得到了高度多孔的纤维。采用这种简单方法，将聚苯乙烯、聚丙烯腈、聚偏二氟乙烯和聚己内酯均静电纺丝制成了多孔纤维。这些多孔纤维在封装、控释、超疏水涂层和轻质增强等方面具有一系列潜在应用。
