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Small angle X‐ray scattering from block polymers. II. The bulk state
Author(s) -
Legrand A. D.,
Vitale G. G.,
Legrand D. G.
Publication year - 1977
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.760170817
Subject(s) - scattering , materials science , polymer , dumbbell , small angle x ray scattering , block (permutation group theory) , copolymer , intensity (physics) , molecular physics , chemical physics , condensed matter physics , optics , physics , geometry , composite material , mathematics , medicine , physical therapy
The basic theory of X‐ray scattering is applied to various hypothetical models for the bulk state of block polymers in order to explain the angular dependent scattering. The intensity of scattering is calculated for a rnicellar model, a zone model, and a molecular dumbbell model. The molecular dumbbell model, in contrast to the micellar and zone models, assumes that a block copolymer containing domains may be treated as one giant molecule and that, therefore, the locations of the domains are not random but are governed by the statistics of the segments which interconnect them. Experimental and calculated scattering curves are compared for several different types of block polymers.