Orthogonally switchable block copolymers: effect of temperature and electrolyte on the self-assembled structures
Diblock copolymers consisting of a thermoresponsive and a zwitterionic blocks are switchable in water by changing temperature or electrolyte concentration. We propose to investigate the thermal behavior of poly(sulfobetaine-b-(Nisopropylacrylamide)), P(SB-b-NIPMAM), diblock copolymers in D2O using temperature-resolved small-angle neutron scattering (SANS). We expect to observe the cloud points due to the collapse of the PNIPMAM and the PSB blocks as well as possible changes due to the addition of electrolyte to the sample solution. We propose to carry out SANS experiments at D11 to study in particular the large-scale structures due to the formation of very large aggregates above and below the cloud points at low values of momentum transfer. We will compare and combine the results to the ones obtained by us previously at higher values of the momentum transfer.
Please note that you will need to login with your ILL credentials to download the data.
Download DataThe recommended format for citing this dataset in a research publication is in the following format:
PAPADAKIS Christine; DYAKONOVA Margarita; GRILLO Isabelle; NIEBUUR Bart-Jan; RAFTOPOULOS Konstantinos and VISHNEVETSKAYA Natalya. (2015). Orthogonally switchable block copolymers: effect of temperature and electrolyte on the self-assembled structures. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.9-11-1733
ILL has partnered with DataCite as the registration agency
for data persistent identifiers.