A study is presented concerning the three different structural levels of isotactic polypropylene (iPP). Involved wkhin

is the coordinated application of optical and electron microscopy on both α-form and β-form iPP

crystallized from melt. For TEM in particular

the RuO4 staning technique has been used to reveal the lamellar morphology in both spherulites of iPP. The investigation itself has centred on the different spherulite types

as identified optically

which were correlated with the details of their particular lamellar morphology

The lamellar morphology of both iPP crystallized from melt drawing has also been studied.