Titelanzeige
| Personen: |
Schmalz, Holger (Autor)
|
|
Böker, Alexander (Autor)
|
|
Lange, Ronald (Autor)
|
|
Krausch, Georg (Autor)
|
|
Abetz, Volker (Autor)
|
| | |
|
Titel: |
Synthesis and properties of ABA and ABC triblock copolymers with glassy (A), elastomeric (B), and crystalline (C) blocks
|
| | |
|
Quelle: |
Macromolecules. Bd. 34. H. 25. Washington, DC : Soc. S. 8720 - 8729 |
|
Erscheinungsjahr: |
2001 |
|
ISBN / ISSN: |
1520-5835 ; 0024-9297 |
|
URL der Originalveröffentlichung |
doi:10.1021/ma010875d
|
| | |
|
Dokumentart: |
|
Zeitschriftenaufsatz |  |
|
|
Sprache: |
Englisch |
|
Open Access: |
— |
|
Person der Universität: |
|
|
Einrichtung: |
Universitätsleitung |
|
DDC-Sachgruppe: |
Physik |
|
ID: |
53585  |
|
Hinweis: |
|
|
Abstract: |
We describe the synthesis, characterization, and properties of polystyrene-block-poly(ethylene-alt-propylene)-block-polyethylene (PS-b-PEP-b-PE) and polystyrene-block-poly(ethylene-alt-propylene)-block-polystyrene (PS-b-PEP-b-PS) triblock copolymers. Morphological investigations using TEM, SEM, and SFM reveal for the PS-b-PEP-b-PE triblock copolymers a morphology consisting of PS cylinders and PE crystallites within a matrix of the PEP block, whereas the PS-b-PEP-b-PS triblock copolymer shows interconnected, distorted PS cylinders in the PEP matrix. Mechanical characterization of these triblock copolymers demonstrated that for small strains the PS-b-PEP-b-PE triblock copolymers exhibit the aimed smaller plastic deformations, i.e. better elastic properties, compared to the polystyrene-based ABA type thermoplastic elastomer. However, at high strains the PS-b-PEP-b-PS triblock copolymer shows a significantly better elastic recovery. The high plastic set at high elongations in PS-b-PEP-b-PE triblock copolymers is attributed to the weaker resistance of the PE crystallites compared to amorphous PS domains in the PS-b-PEP-b-PS triblock copolymer. |
|
|
|
| | |
|
Verfügbarkeit prüfen: |
Rechercheportal Mainz: 1520-5835/0024-9297
|
|
|
Elektronische Zeitschriftenbibliothek (EZB): 1520-5835 oder 0024-9297
|
| |
|
|
