TY - JOUR
T1 - Photo-Patternable, High-Speed Electrospun Ultrafine Fibers Fabricated by Intrinsically Negative Photosensitive Polyimide
AU - Qi, Lin
AU - Jia, Yanjiang
AU - An, Yuancheng
AU - Zhi, Xinxin
AU - Zhang, Yan
A2 - Liu, Jingang
A2 - Li, Jiashen
N1 - Funding Information:
Financial supports from the Shandong Key Research and Development Program (no. 2019JZZY020235) and the Fundamental Research Funds of China University of Geosciences, Beijing (no. 2652017345) are gratefully acknowledged.
Publisher Copyright:
©
PY - 2021/7/20
Y1 - 2021/7/20
N2 - This work describes polyimide (PI) ultrafine fibrous membranes (UFMs) with aligned fibrous structures, fabricated via the high-speed electrospinning procedure. Organo-soluble intrinsically photosensitive PI is utilized as the fiber-forming agent. The effects of different rotating speeds on the fiber morphology and properties are studied. The aligned UFMs possess hydrophobicity, favorable optical properties, and improved deformation durability. The extension strength of the UFMs reinforces obviously with the increased rotating speed and reaches the maximum of 9.18 MPa at 2500 rpm. In addition, due to the photo-cross-link nature of the PI resin, the UFMs present lithography capability, which can obtain micro-sized patterns on aluminum substrates, and even part of the fibrous structure was retained after development. This work shows promise in manufacturing fiber-based photolithographic hierarchical structures on flexible substrates, which exhibit potential in achieving multiple functions on fiber-based electronic devices.
AB - This work describes polyimide (PI) ultrafine fibrous membranes (UFMs) with aligned fibrous structures, fabricated via the high-speed electrospinning procedure. Organo-soluble intrinsically photosensitive PI is utilized as the fiber-forming agent. The effects of different rotating speeds on the fiber morphology and properties are studied. The aligned UFMs possess hydrophobicity, favorable optical properties, and improved deformation durability. The extension strength of the UFMs reinforces obviously with the increased rotating speed and reaches the maximum of 9.18 MPa at 2500 rpm. In addition, due to the photo-cross-link nature of the PI resin, the UFMs present lithography capability, which can obtain micro-sized patterns on aluminum substrates, and even part of the fibrous structure was retained after development. This work shows promise in manufacturing fiber-based photolithographic hierarchical structures on flexible substrates, which exhibit potential in achieving multiple functions on fiber-based electronic devices.
U2 - 10.1021/acsomega.1c02535
DO - 10.1021/acsomega.1c02535
M3 - Article
C2 - 34308077
SN - 2470-1343
VL - 6
SP - 18458
EP - 18464
JO - ACS Omega
JF - ACS Omega
IS - 28
ER -