Small-angle neutron scattering and neutron reflectometry study of a model graft copolymer

Autor: M. Rabeony, M. Y. Lin, Richard P. Wool, G. Agrawal, W. D. Dozier, Pappannan Thiyagarajan, Dennis G. Peiffer
Rok vydání: 1994
Předmět:
Zdroj: Polymer. 35:3116-3118
ISSN: 0032-3861
DOI: 10.1016/0032-3861(94)90428-6
Popis: A model graft copolymer material consisting of polystyrene (PS) chains grafted onto a poly(ethyl acrylate) backbone was studied by small-angle neutron scattering (SANS) and neutron reflectivity. This 28 wt% PS graft material exhibited a lamellar phase morphology; it also produced abnormal butterfly isointensity patterns in SANS when uniaxially strained. It is believed that the polydispersity in structure of the copolymers is critical in producing the unexpected lamellar morphology.
Databáze: OpenAIRE