Linear low-density polyoxymethylene versus linear low-density polyethylene

Linear low-density branched polyethylene (LLDPE) and linear low-density branched poly-oxymethylene (LLDPOM) were directly compared by differentiating the ability of a branch to disrupt crystallinity in these two copolymer classes. POM and LLDPOM are poised to become increasingly attractive because methanol can be synthesized from renewable and biorenewable feedstocks, and these polyacetal polymers are amenable to chemical recycling, affording the original formaldehyde monomer. Well-defined array of poly-oxymethylene (POM) copolymers having a wide range of branch content and branch length has allowed the direct comparison. The disruptive effect was quantified by copolymer melting temperature, which is expected to further help in preparing LLDPOM with tunable and marketable thermomechanical properties.