Method of variation of contrast in neutron scattering studies of conformations of block copolymers forming a microdomain structure

The registration of the signal of small angle neutron scattering from a single deuterated chain in a superstructure formed by block copolymers is difficult due to Bragg diffraction. A method is proposed to avoid this diffraction by turning the interdomain neutron contrast to zero. This is attained b...

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Bibliographic Details
Published in:Polymer (Guildford) 1992, Vol.33 (12), p.2553-2556
Main Authors: Vilesov, A.D, Vinogradova, L.V, Gazdina, N.V, Evmenenko, G.A, Zgonnik, V.N, Nesterov, V.V, Frenkel, S
Format: Article
Language:English
Subjects:
Applied sciences
block copolymer
Exact sciences and technology
macromolecule
neutron scattering
Organic polymers
Physicochemistry of polymers
Properties and characterization
radius of gyration
Structure, morphology and analysis
superstructure
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Summary:The registration of the signal of small angle neutron scattering from a single deuterated chain in a superstructure formed by block copolymers is difficult due to Bragg diffraction. A method is proposed to avoid this diffraction by turning the interdomain neutron contrast to zero. This is attained by means of synthesis of each block of the polystyrene -polybutadiene-polystyrene block copolymer as a statistical copolymer of H and D monomers. The radius of gyration of the deuterated polybutadiene block was measured by neutron scattering.
ISSN:0032-3861
1873-2291
DOI:10.1016/0032-3861(92)91137-Q