Propylene-a/f-ethylene

Ethylene is used in a considerable number of copolymers. Some of these are binary copolymers, but copolymers of three or even four components also are known. As indicated in Section 2.3, specific monomer reactivity ratios are required for generating a copolymer. However, this requirement is satisfied for a number of monomers. Some common copolymers of polyethylene are indicated in Table 6.1.3. Some of the copolymers listed in Table 6.1.3 are a/f-copolymers. They behave during pyrolysis as homopolymers. More details regarding pyrolysis of several a/f-copolymers are given further in this section for poly(propylene-a/f-ethylene), in Section 6.3 for poly(ethylene-a/f-chlorotrifiuoroethylene), and in Section 6.9 for poly(ethylene-a/f-maleic anhydride). The copolymers in which the backbone chain contains atoms different from carbon, such as oxygen or sulfur, are discussed in sections dedicated to polymers containing that particular atom in the backbone. 

In the class of other homopolyolefins also can be included poly(propylene-a/f-ethylene) or hydrogenated polyisoprene, CAS 127883-08-3. The structure of the polymer is indicated below, together with that of polyethylene and polypropylene, shown for... 

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