Abstract
A pyrolysis-gas chromatography method has been developed to study composition and microstructure of a styrene-maleic anhydride (SMA) copolymer. Since the anhydride functional group is not stable under normal pyrolysis conditions, a derivatization technique has been developed to successfully study the composition and microstructure. Because of the unique structure of SMA copolymers, the number average sequence length can be used to indicate the polymer chain length or average molecular mass. The method developed in this report has demonstrated a feasible approach to studying the composition and structure by pyrolysis-GC for those polymers containing functional groups which are not stable under pyrolysis conditions.
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