| Attributs | Valeurs |
|---|
| type
| |
| Is Part Of
| |
| Subject
| |
| Title
| - Formation of High-Stress Phase and Extrusion of Polyethylene due to Nanoconfinementsduring Ziegler−Natta Polymerization Inside Nanochannels
|
| has manifestation of work
| |
| related by
| |
| Author
| |
| Abstract
| - Polyethylene nanofibers were synthesized by heterogeneous Ziegler−Natta polymerization inside nanochannelsof robust anodized aluminum oxide (AAO) membranes. The polymerization catalysts were chemisorbed atthe inner wall of the nanochannels and monomers were provided through diffusion from the outside.Polyethylene is produced inside the nanochannels in the 10−20 μm region from the channel entrance.Polyethylene fibers were extruded from the nanochannels up to 3−5 μm during the polymerization. X-raydiffraction, differential scanning calorimetry, and Fourier transform infrared analyses indicated formation ofa highly stressed crystalline structure although the polymerization was carried out without any external pressureor mechanical work. The highly stressed phase formation inside nanochannels and some degree of polyethylenenanofiber extrusion from nanochannels were attributed to catalytic production of excess amounts of polyethyleneinside nanoconfined templates.
|
| article type
| |
| is part of this journal
| |
