In an earlier review, Morgan et al summarized information on polymer decomposition chemistry and details on how polymer decomposition affects flame spread and growth. It was reported that polymer decomposition and heat generation are dependent on the chemical composition of the repeat units of the polymers. It was shown that polymers mostly containing sp 3 carbon bonds have potential for high heat release than polymers containing more aromatic character i.e., containing more sp 2 bonds. It was also mentioned that beside flammability it was also important to consider parameters such as high smoke release, tendency to drip, and release of corrosive or toxic gases during burning.