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Title: Processes for preparing carbon fibers using sulfur trioxide in a halogenated solvent

Disclosed here are processes for preparing carbonized polymers (preferably carbon fibers), comprising sulfonating a polymer with a sulfonating agent that comprises SO.sub.3 dissolved in a solvent to form a sulfonated polymer; treating the sulfonated polymer with a heated solvent, wherein the temperature of the solvent is at least 95.degree. C.; and carbonizing the resulting product by heating it to a temperature of 500-3000.degree. C. Carbon fibers made according to these methods are also disclosed herein.
Authors:
; ; ; ; ; ;
Publication Date:
OSTI Identifier:
1234228
Report Number(s):
9,222,201
14/413,456
DOE Contract Number:
NFE-10-02991
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Jul 03
Research Org:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE