Gutenberg Open


Titelanzeige

Personen: Böker, Alexander (Autor) 
Müller, Axel H. E. (Autor) 
Krausch, Georg (Autor) 
  
Titel: Nanoscopic surface patterns from functional ABC triblock copolymers
  
Quelle: Macromolecules. Bd. 34. H. 21. Washington, DC : Soc. S. 7477 - 7488
Erscheinungsjahr:    2001
ISBN / ISSN: 1520-5835 ; 0024-9297
URL der Originalveröffentlichung doi:10.1021/ma002198d
  
Dokumentart:
Zeitschriftenaufsatz Zeitschriftenaufsatz
Sprache: Englisch
Open Access:
Person der Universität:   
Einrichtung: Universitätsleitung
DDC-Sachgruppe:    Physik
ID: 53581  Universitätsbibliothek Mainz
Hinweis:
Informationen zu den Nutzungsrechten unserer Inhalte Informationen zu den Nutzungsrechten unserer Inhalte
Abstract: We synthesized analogous series of monodisperse ABC triblock copolymers with symmetrical end blocks A/C and different short middle blocks B (5−10 wt %) with varying polarities by sequential anionic polymerization, i.e., polystyrene-b-poly(2-vinylpyridine)-b-poly(methyl methacrylate) (PS-b-P2VP-b-PMMA) and polystyrene-b-poly(2-hydroxyethyl methacrylate)-b-poly(methyl methacrylate) (PS-b PHEMA-b-PMMA). Thin (thickness ∼ 20 nm) and ultrathin films (thickness ≤ 7 nm) were prepared by either dip-coating or adsorption from solution onto silicon wafers. The copolymer films were investigated by scanning force microscopy. In thin films, the polar middle block adsorbs preferentially to the polar substrate, resulting in a polymer film surface that exclusively consists of PS and PMMA microdomains. In ultrathin films, the two polar B and C blocks behave like a single B block resulting in structures which can be described by recent scaling laws. The lateral spacing and the morphology of the structures can be controlled by film thickness and A/C block length.
   
  
Verfügbarkeit prüfen:    Rechercheportal Mainz: 1520-5835/0024-9297
  Elektronische Zeitschriftenbibliothek (EZB): 1520-5835 oder 0024-9297
 


Im   
Impressum