Melting of Poly oxymethylene

Poly(oxymethylene), POM, is a polymer with well-known melting behavior [56]. Fibrous, extended chain crystals can be produced by crystallization during polymerization, as described in Figs. 3.104 and 3.105. These extended-chain crystals can superheat on melting due to their slow melting rate, as is also seen for extended-chain crystals of polyethylene in Fig. 6.21. The DSC melting endotherms in Fig. 6.92 start for all heating rates at about the same temperatures, but the peak- and melt-end 

Melting of Extended-chain Crystals of Poly(oxymethylene) from Trioxane 

The next thermal analyses are for solution-grown dendrites, hedrites, and melt-grown lamellae, represented by Eigs. 6.93 and 6.94. The dendrites melt at much lower temperatures than the extended-chain crystals and show multiple melting peaks. 

Melting of 6olution-grown Dendrites of Foly(oxymethylene) 

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