Title

Polybenzoxazine Aerogels: Synthesis, Characterization, and Conversion to Carbon and Graphite Aerogels

Abstract

Polybenzoxazines (PBOs) are phenolic resin type polymers with high strength and high temperature stability comparable to that of polyimides. Here PBO aerogels were synthesized from bisphenol A, paraformaldehyde, aniline and DMSO. Resultant aerogels are macroporous materials and were characterized chemically (13C NMR), nanoscopically (SAXS, SEM) and macroscopically (uniaxial compression, thermal conductivity). Pyrolysis at 800 ⁰C yields robust, mainly microporous carbon aerogels, while further pyrolysis at 2300 ⁰C yields highly conducting graphite aerogels (50 mho cm-1) with a rod-like microstructure. The latter are evaluated for lithium intercalation.

Meeting Name

245th ACS National Meeting and Exposition (2013: Apr. 7-11, New Orleans, LA)

Department(s)

Chemistry

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2013 American Chemical Society (ACS), All rights reserved.

This document is currently not available here.


Share

 
COinS