Supermolecular Structure of Isotactic Polypropylene Hydrogenated Oligo Cyclopentadiene Blends

8 Supermolecular Structure of Isotactic Polypropylene/Hydrogenated Oligo (Cyclopentadiene) Blends 

The crystallization and thermal behavior of iPP/HOCP blends suggested the two components are miscible in the melt. Besides, during crystallization of iPP, the molecules of HOCP are mainly ejected in interlamellar regions where they form a homogeneous phase with uncrystallized iPP molecules or part of them. Next studies 

Blends and plain iPP were melted at 200°C for 10 min, then isothermaUy crystallized. was calculated according to the relation  

The details of the crystallization and annealing for each sample are reported in Table 6.7. 

The thermal behaviors of the crystallized and annealed samples were investigated by DSC. The apparent enthalpies of fusion, A//, of plain iPP and blends were calculated from the area of the endothermic peaks. The crystalline and amorphous weight fractions were calculated from the following relations  

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