Accessibility navigation

Modelling the structure of a polymer glass poly(methylmethacrylate) through neutron scattering experiments

Ward, D.J. and Mitchell, G.R. (1995) Modelling the structure of a polymer glass poly(methylmethacrylate) through neutron scattering experiments. Physica Scripta, T57. pp. 153-160. ISSN 1402-4896

Full text not archived in this repository.

It is advisable to refer to the publisher's version if you intend to cite from this work. See Guidance on citing.

To link to this item DOI: 10.1088/0031-8949/1995/T57/027


Determination of the local structure of a polymer glass by scattering methods is complex due to the number of spatial and orientational correlations, both from within the polymer chain (intrachain) and between neighbouring chains (interchain), from which the scattering arises. Recently considerable advances have been made in the structural analysis of relatively simple polymers such as poly(ethylene) through the use of broad Q neutron scattering data tightly coupled to atomistic modelling procedures. This paper presents the results of an investigation into the use of these procedures for the analysis of the local structure of a-PMMA which is chemically more complex with a much greater number of intrachain structural parameters. We have utilised high quality neutron scattering data obtained using SANDALS at ISIS coupled with computer models representing both the single chain and bulk polymer system. Several different modelling approaches have been explored which encompass such techniques as Reverse Monte Carlo refinement and energy minimisation and their relative merits and successes are discussed. These different approaches highlight structural parameters which any realistic model of glassy atactic PMMA must replicate.

Item Type:Article
Divisions:Interdisciplinary centres and themes > Chemical Analysis Facility (CAF) > Electron Microscopy Laboratory (CAF)
ID Code:26923
Publisher:IOP Science

University Staff: Request a correction | Centaur Editors: Update this record

Page navigation