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Microphase separation transition in block copolymer melts
Author(s) -
Hewel M.,
Ruland W.
Publication year - 1986
Publication title -
makromolekulare chemie. macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 0258-0322
DOI - 10.1002/masy.19860040120
Subject(s) - copolymer , small angle x ray scattering , materials science , thermodynamics , function (biology) , constant (computer programming) , polymer , scattering , physics , optics , computer science , programming language , evolutionary biology , composite material , biology
The microphase separation transition (MST) in block copolymer melts has been studied using synchrotron SAXS. The results indicate that the MST occurs in the range of molecular weights and Flory‐Huggins interaction parameters x predicted by the theory of Leibler (Ref. 5). Studies of the MST as a function of molecular weight for constant composition can be used to determine the temperature dependence of x. The observed change of macrolattice constants with temperature is somewhat different from theoretically predicted values.