6533b874fe1ef96bd12d605c
RESEARCH PRODUCT
Small angle scattering study of the structure of isotactic polypropylene-hydrogenated oligo(cyclopentadiene) blends
Sossio CimminoClara SilvestreRoberto TrioloEugenio CaponettiEzio MartuscelliMichele FlorianoD. Chillura Martinosubject
chemistry.chemical_classificationSmall-angle X-ray scatteringOrganic ChemistryPolymerAtmospheric temperature rangeAnalytical ChemistryAmorphous solidInorganic ChemistryCrystallinitychemistryChemical engineeringTacticityPolymer chemistryHigh-density polyethylenePolymer blendSpectroscopydescription
Abstract Blends of isotactic polypropylene ( i PP) and hydrogenated oligo cyclopentadiene (HOCP) have been studied by means of small angle X-ray scattering in the temperature range 70–160°C. The structure of blends containing less than 25% HOCP is very similar to the one of plain i PP, i.e. lamellae whose thickness increases by increasing the temperature. Blends containing more than 25% HOCP are characterized by two kinds of lamellae formed by layers of i PP and amorphous material rich in i PP and in HOCP, respectively. The crystallizable i PP present in both phases crystallizes from the melt, in analogy to what happens in HDPE/HOCP blends and in agreement with the values of the crystallinity referred to the crystallizable polymer, that is almost constant with composition for both blends.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1996-09-01 | Journal of Molecular Structure |