A small‐angle neutron scattering method has been developed to determine the chain conformation of homopolymer chains dispersed in a block copolymer matrix. Two contrast matching techniques are used to achieve this result and are demonstrated for a system based on a styrene‐hydrogenated butadiene‐styrene triblock copolymer and a hydrogenated butadiene homo‐polymer. Composition matching uses a blend of labeled and unlabeled molecules to match the scattering density of another component. Phase matching requires a block copolymer which has been synthesized such that the scattering densities of the blocks are equal. This polymer provides a transparent matrix in which a composition‐matched blend of homopolymer can be dispersed to isolate the single‐chain scattering function of the homopolymer chains.
No takes yet. Share an insight, caveat, or question.
Quan et al. (1987) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: