Perforated lamellae morphology in novel P2VP(PDMS-b-PI-b-PS)23-miktoarm star quarterpolymer

Date

2011

Authors

Kirkensgaard, Jacob
Fragouli, Panagiota
Hadjichristidis, Nikos
Mortensen, Kell

Journal Title

Journal ISSN

Volume Title

Publisher

American Chemical Society

Abstract

The melt morphology of a novel P2VP(PDMS-b-PI-b-PS)2 3-miktoarm star quarterpolymer is investigated. The melt morphology is determined using rheology and small-angle neutron and X-ray scattering data in conjunction with dissipative particle dynamics simulations of a model molecule matching the volume fractions of the experimental system. The simulations are used to interpret the scattering data and identify the melt morphology as a new perforated lamellae structure. In this structure the P2VP forms hexagonally perforated lamellae containing close-packed protrusions of PS connecting adjacent lamellae layers of PS. The PI part forms a lining between the P2VP and PS domains constrained by the molecular architecture.

Description

Keywords

Keywords: Dissipative particle dynamics simulation; Experimental system; Molecular architecture; Scattering data; Computer simulation; Microchannels; Scattering; Morphology

Citation

Source

Macromolecules

Type

Journal article

Book Title

Entity type

Access Statement

License Rights

DOI

10.1021/ma1016314

Restricted until

2037-12-31