Nanoporous Carbon Fiber Based on Polyacrylonitrile-Containing Block Copolymers: A Hierarchical, Multi-Lengthscale Porous Materials Platform
Abstract
Carbon fiber is an important low-density material that has outstanding properties critical forapplications including aircrafts, motor vehicles, drones, and pilot’s personal gear. The proposed approach uses PAN-containing block copolymer with the following advantages: 1) the porousstructures are at the nanometer scale instead of micrometer scale; 2) the porous structures havetunable morphologies (sphere, cylinder, gyroid, lamellae, etc.) intrinsically defined by the blockcopolymer composition; and 3) the porous structures have tunable uniform domain sizes intrinsically controlled by the block copolymer molecular weight.We expect to develop a metal-free method for synthesizing PAN-containing blockcopolymers, understand the materials behavior in thin films and in fibers, and lay thefundamental knowledge foundation for using block copolymer to generate nanoporous carbonfiber with controlled morphology and domain size.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- May 02, 2017
- Source ID
- FA95501710112
Entities
People
- Guoliang Greg Liu
Organizations
- Air Force Office of Scientific Research
- United States Air Force
- Virginia Tech