Nanofibers with diameter below one nanometer from electrospinning.
Nanofibers with diameter below one nanometer from electrospinning.
复制标题
静电纺丝直径小于一纳米的纳米纤维
DOI：
10.1039/c7ra13444d
复制
发表时间：
2018-01-24
期刊：
影响因子：
3.9
通讯作者：
Hou, Haoqing
中科院分区：
文献类型：
--
作者：
Jian, Shaoju;Zhu, Jia;Jiang, Shaohua;Chen, Shuiliang;Fang, Hong;Song, Yonghai;Duan, Gaigai;Zhang, Yongfan;Hou, Haoqing
近年来，亚纳米材料以其独特的性能受到了广泛的关注。目前的研究大多集中在无机亚纳米材料的制备和性能研究上，而有机亚纳米材料，特别是高分子亚纳米材料，如亚纳米纤维，由于制备此类小纳米纤维的障碍，报道较少。本文以超高分子量的聚酰胺酸为原料，通过静电纺丝制备了直径从数百纳米到亚纳米不等的聚丙烯酸纳米纤维。利用扫描电子显微镜（SEM）、透射电子显微镜（TEM）和原子力显微镜（AFM）对静电纺超薄纳米纤维的形貌和尺寸进行了表征。原子力显微镜图像与理论计算相结合表明，在超稀PAA溶液中首次通过静电纺丝制备出了长度约为0.17 ~ 0.63 nm的亚纳米纤维。这些细小的亚纳米纤维为静电纺丝开辟了新的领域，为单分子链静电纺亚纳米纤维的生产和应用提供了进一步的探索。
Sub-nanometer materials have received wide attention due to their unique properties in recent years. Most studies focus on the preparation and properties investigation of the inorganic sub-nanometer materials, while there are few reports on organic especially polymeric sub-nanometer materials such as sub-nanometer fiber due to the obstacles with respect to fabricating such small nanofibers. In this work we prepare PAA nanofibers with diameters ranging from hundreds of nanometers down to sub-nanometer via electrospinning from a polyamic acid (PAA) with ultrahigh molecular weight. The morphologies and size of the electrospun ultrathin nanofibers are characterized using scanning electron microscopy (SEM), transmission electron microscopy (TEM), and atomic force microscopy (AFM). AFM images combined with theoretic calculations show that sub-nanometer fiber of approximate 0.17–0.63 nm only containing one molecular chain was generated via electrospinning from ultra-dilute PAA solutions for the first time. These quite small sub-nanometer fibers would open a new area of electrospinning and provide further explorations on the production and application of electrospun sub-nanometer fibers with single molecular chains.
登录
查看更多内容
影响因子：
3
作者：
Grimme, Stefan
通讯作者：
Grimme, Stefan
影响因子：
5.5
作者：
Megelski, S;Stephens, JS;Rabolt, JF
通讯作者：
Rabolt, JF
影响因子：
4.6
作者：
Fong, H;Chun, I;Reneker, DH
通讯作者：
Reneker, DH
定向静电纺聚酰亚胺纳米纤维带高温力学性能
影响因子：
3
作者：
Jiang, Shaohua;Duan, Gaigai;Hou, Haoqing
通讯作者：
Hou, Haoqing
影响因子：
3.5
作者：
Adamcik, Jozef;Klinov, Dmitry V.;Dietler, Giovanni
通讯作者：
Dietler, Giovanni