Pyrolysis products grafting

When the proportion of one type of monomeric unit in a copolymer is small, the detection of the presence in the pyrolysis products of that component is sometimes more difficult. As an example, a sample of poly(ethylene-graft-maleic anhydride), CAS 106343-08-2, with 3% wt. maleic anhydride was pyrolyzed at 600° C in He with separation of a Carbowax column. The results are shown in the upper trace in Figure 6.1.14. 

Figure 1. Ejects of grafting on pyrolysis products. Key O, char , tar O, water. A, mercerized cellulose B, carbamoylethylated and carboxyethylated...

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