Features of the hedritic morphology of β-isotactic polypropylene studied by atomic force microscopy

Share/Save/Bookmark

Trifonova-Van Haeringen, Dorina and Varga, Jozsef and Ehrenstein, Gottfried W. and Vancso, G. Julius (2000) Features of the hedritic morphology of β-isotactic polypropylene studied by atomic force microscopy. Journal of Polymer Science, Part B: Polymer physics, 38 (5). pp. 672-681. ISSN 0887-6266

[img]PDF
Restricted to UT campus only
: Request a copy
446Kb
Abstract:The lamellar organization of melt-crystallized β-isotactic polypropylene was studied by atomic force microscopy (AFM) after permanganic etching. Hedritic objects grown at a high crystallization temperature (140-143 °C) were investigated. Essential features of the hedritic development were revealed by the characteristic projections exposed at the sample surface. A three-dimensional view of the morphology was obtained by AFM. Hedritic growth proceeded mainly by branching around screw dislocations resulting in new lamellae that further developed. Successive lamellar layers often diverged. Deviation from the planar lamellar habit was observed, varying with the position within the hedrite. Twisting of the lamellae also was observed occasionally in the vicinity of the screw dislocations.
Item Type:Article
Copyright:© 2000 Wiley InterScience
Faculty:
Science and Technology (TNW)
Research Group:
Link to this item:http://purl.utwente.nl/publications/71625
Official URL:http://dx.doi.org/10.1002/(SICI)1099-0488(20000301)38:5<672::AID-POLB4>3.0.CO;2-P
Export this item as:BibTeX
EndNote
HTML Citation
Reference Manager

 

Repository Staff Only: item control page