Speaker
Dr
Geethu P. Meledam
(TU München, Physik-Department, Garching, Germany)
Description
Influence of pressure on the formation of mesoglobules of the thermoresponsive polymer poly(N-isopropyl acrylamide) (PNIPAM) in aqueous solution, when heated above its cloud point is investigated using very small angle neutron scattering. At a critical pressure, a remarkable increase in the size of PNIPAM mesoglobules is noted. We presume that the observed increase in the size of mesoglobules is due to the pressure induced enhancement in hydration and subsequent aggregation of mesoglobules.
Primary authors
Dr
Geethu P. Meledam
(TU München, Physik-Department, Garching, Germany)
Bart-Jan Niebuur
(TU München, Physik weicher Materie)
Vitaliy Pipich
Dr
Marie-Sousai APPAVOU
(Jülich Centre for Neutron Science (JCNS) at Heinz Maier-Leibnitz Zentrum (MLZ), Forschungszentrum Jülich GmbH)
Alfons Schulte
(University of Central Florida)
Christine Papadakis
(Technische Universität München, Physik-Department, Fachgebiet Physik weicher Materie)