Structural and Frictional Interactions between Microphase

investigating the links between macromolecular design, specifically polymer architecture ... sorting out how different copolymer designs influence...
1 downloads 17 Views 826KB Size
Structural and Frictional Interactions between Microphase Segregated, Segregated Multicomponent Polymer Brushes S. Michael Kilbey II, Departments of Chemistry and of Chemical and Biomolecular Engineering, g g, University y of Tennessee,, Knoxville,, TN 37996 Understanding Self-Assembly at the Solid-Fluid Interface: Multicomponent polymeric systems that spontaneously organize, producing useful building-block structures or conferring enhanced function, are of interest for a variety of advanced technologies. In this research we are investigating the links between macromolecular design, specifically polymer architecture and composition, and self-assembled structure and dynamics in solution and at solid-fluid interfaces. Our research has revealed the importance of surface relaxation and reorganization processes and provided a quantitative basis for sorting out how different copolymer designs influence self self-assembled assembled structure and dynamics. 1.8

MA3 30 μg/mL MA3 3 μg/mL

2

Adsorbed am mount (mg/m )

1.6

Self-assembly is influenced by exchange of single chains from micelles as well as surface reorganizations as the micellar ensembles unpack at the interface.

1.4 1.2 1.0 08 0.8 0.6 0.4 0.2 0.0 0

2000

4000

6000

8000

10000

Time (s)

12000

20000 30000 40000