for calculating char content of a carbon-source such as polyimide
Dear Megha,
The char yield of polymers varies widely with the structure, it can be determined only empirically, see e.g.
http://fire.nist.gov/bfrlpubs/fire99/PDF/f99085.pdf
http://fire.nist.gov/bfrlpubs/fire96/PDF/f96135.pdf
http://www.ewp.rpi.edu/hartford/~ernesto/F2012/EP/MaterialsforStudents/Patel/Beyler_Hirschler_SFPE_Handbook_3.pdf
http://www.iafss.org/publications/fss/3/537/view/fss_3-537.pdf
https://core.ac.uk/download/pdf/6653.pdf
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