Perforated lamellae morphology in novel P2VP(PDMS-b-PI-b-PS)2 3-miktoarm star quarterpolymer

TY - JOUR

T1 - Perforated lamellae morphology in novel P2VP(PDMS-b-PI-b-PS)2 3-miktoarm star quarterpolymer

AU - Kirkensgaard, Jacob Judas Kain

AU - Fragouli, Panagiota

AU - Hadjichristidis, Nikos

AU - Mortensen, Kell

PY - 2011/2/8

Y1 - 2011/2/8

N2 - 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.

AB - 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.

U2 - 10.1021/ma1016314

DO - 10.1021/ma1016314

M3 - Journal article

SN - 0024-9297

VL - 44

SP - 575

EP - 582

JO - Macromolecules

JF - Macromolecules

IS - 3

ER -