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Phase separation in the poly (γ‐benzyl‐α, l‐glutamate)/benzyl alcohol system
Author(s) -
Horton J. C.,
Donald A. M.
Publication year - 1990
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.19900390111
Subject(s) - benzyl alcohol , polystyrene , crystallization , rigidity (electromagnetism) , spinodal , vitrification , materials science , spinodal decomposition , phase (matter) , polymer chemistry , chemical engineering , chemistry , organic chemistry , polymer , catalysis , composite material , physics , nuclear physics , engineering
We describe phase separations seen in the poly (γ‐benzyl α, L‐glutamate) (PBLG)/benzyl alcohol (BA) system. At temperatures below about 60°C, this system gels. Possible explanations of the system's rigidity include both crystallisation and spinodal decomposition. Recent work on atactic polystyrene (a‐PS) gels has suggested these are the result of a phase separation arrested by vitrification. An analogy between a‐PS and PBLG gels is suggested whereby crystallisation (in the latter) plays the rǒle of vitrification in the former.