Journal article
Critical neutron scattering in a polymer blend above and below the critical point of demixing: Critical exponents and amplitude ratios
The critical behavior of a polymer blend was measured by small-angle neutron scattering above and below the critical temperature T-c, i.e., outside and inside the unstable region. The critical exponents and the amplitudes of the susceptibility and the correlation length were determined. For T > T-c the critical exponents gamma and nu are consistent with the renormalization-group predictions.
Below T-c, however, deviations from the expected values were observed. Also experimental critical amplitude ratios (20-30)% smaller than predicted were found.
Language: | English |
---|---|
Year: | 1994 |
Pages: | 1452-1455 |
ISSN: | 10797114 and 00319007 |
Types: | Journal article |
DOI: | 10.1103/PhysRevLett.73.1452 |
ORCIDs: | 0000-0002-8998-9390 |