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Study on the miscibility of poly(2‐hydroxyethyl methacrylate)/poly(styrene‐ co ‐acrylamide) blends by nonradiative energy transfer fluorescence spectroscopy
Author(s) -
Zhu K. J.,
Ji Wang
Publication year - 1995
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.1995.021960203
Subject(s) - miscibility , copolymer , anthracene , polymer chemistry , materials science , methacrylate , styrene , carbazole , acrylamide , differential scanning calorimetry , chemistry , polymer , photochemistry , composite material , thermodynamics , physics
The miscibility of poly(2‐hydroxyethyl methacrylate)/poly(styrene‐ co ‐acrylamide) (PHEMA/PSAm) blends was investigated by nonradiative energy transfer fluorescence spectroscopy using anthracene‐labeled PHEMA and carbazole‐labeled PSAm. The results show that the ratio of the carbazole and anthracene emission intensity, I c / I a , passes through a minimum at 47 to 57 mol‐% of acrylamide in PSAm copolymers in the blends, indicating that a ‘miscible window’ exists. It also was found that the results are consistent with those obtained by differential scanning calorimetry. The driving force for the miscibility of PHEMA/PSAm may be explained with a mean‐field theory.