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Reverse Thermal Organogel
Author(s) -
Jeong Y.,
Joo M. K.,
Sohn Y. S.,
Jeong B.
Publication year - 2007
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200700149
Subject(s) - ethylene glycol , materials science , copolymer , polymer , chloroform , chemical engineering , thermal , micelle , polymer chemistry , organic chemistry , aqueous solution , chemistry , composite material , thermodynamics , physics , engineering
Poly(ethylene glycol)‐polypeptide diblock copolymer solutions undergo a clear‐sol‐to‐clear‐gel transition (reverse thermal gelation) as the temperature increases at as low a concentration as 1.0 wt % in chloroform (see figure). The micellar aggregation model involving desolvation of the poly(ethylene glycol) is suggested for the unique behavior of the polymer solution.