Premium
Neutron reflectometry studies on the interfacial width between polystyrene and various poly(alkylmethacrylates)
Author(s) -
Schubert D. W.,
Stamm M.,
Müller A. H. E.
Publication year - 1999
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.11542
Subject(s) - neutron reflectometry , polystyrene , materials science , deuterium , polymer , neutron , reflectometry , glass transition , alkyl , composite material , polymer chemistry , neutron scattering , small angle neutron scattering , nuclear physics , organic chemistry , chemistry , physics , time domain , computer science , computer vision
From neutron reflectometry we have obtained the interfacial width (typically 2–8 nm) between incompatible polymers above the glass transition temperatures. The investigated polymer bilayers consist of a deuterated polystyrene top layer and various poly(alkylmethacrylates) as a bottom layer. We obtained interesting effects of the length of the alkyl group on the interfacial width. Using mean‐field theory we calculate Flory‐Huggins‐Stavermann interaction parameters χ from the interfacial width a I data. These results are compared with investigations of the interfacial width between deuterated poly(methylmethacrylate) and respective polyalkylmethacrylates.