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

Patton, Jasson T.; Barton, Bryan E.; Bernius, Mark T.; Chen, Xiaoyun; Hukkanen, Eric J.; Rhoton, Christina A.; Lysenko, Zenon

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

Patent · Tue Dec 29 00:00:00 EST 2015

OSTI ID:1234228

Patton, Jasson T.; Barton, Bryan E.; Bernius, Mark T.; Chen, Xiaoyun; Hukkanen, Eric J.; Rhoton, Christina A.; Lysenko, Zenon

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.

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Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: NFE-10-02991

Assignee:: Dow Global Technologies LLC

Patent Number(s):: 9,222,201

Application Number:: 14/413,456

OSTI ID:: 1234228

Resource Relation:: Patent File Date: 2013 Jul 03

Country of Publication:: United States

Language:: English

References (12)

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Sulphonation method for manufacture of a cation exchange resin Akiyama, Hiroshi; Kuyama, Hiroshi; Oinuma, Kohji https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4209592 US Patent Document 4,209,592	patent	June 1980
Process for the generation of sulfur trioxide reagent and sulfonation of the surface of polymeric resins Walles, Wilhelm E.; Near, David R.; Tomkinson, Donald L. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4902493 US Patent Document 4,902,493	patent	February 1990
Sulphonation process for low crosslinked polystyrene Bedell, Stanley F.; Nemphos, Speros P. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5280082 US Patent Document 5,280,082	patent	January 1994
Process for preparing ion exchange resins by chloromethylation of crosslinked styrene copolymers in the presence of saturated hydrocarbon swelling agents Song, Cheng Q.; Greer, Albert H.; Halpern, Marc E. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5523327 US Patent Document 5,523,327	patent	June 1996
Manufacture of cation exchange resins by pressurized sulfonation Foster, Kenneth L.; Westphal, Natalie N.; Subramonian, Suresh https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5721279 US Patent Document 5,721,279	patent	February 1998
Method for Production of Carbon Nanofiber Mat or Carbon Paper Naskar, Amit K. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20130214442 US Patent Document 13/402139; 20130214442	patent-application	August 2013
Patterned Functional Carbon Fibers from Polyethylene Hunt, Marcus A.; Saito, Tomonori; Brown, Rebecca H. Advanced Materials, Vol. 24, Issue 18, p. 2386-2389 https://doi.org/10.1002/adma.201104551	journal	March 2012
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The effect of diameter on the mechanical properties of amorphous carbon fibres from linear low density polyethylene Penning, J. P.; Lagcher, R.; Pennings, A. J. Polymer Bulletin, Vol. 25, Issue 3, p. 405-412 https://doi.org/10.1007/BF00316913	journal	March 1991
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