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Reverse Thermal Organogelation of Poly(ethylene glycol)‐Polypeptide Diblock Copolymers in Chloroform
Author(s) -
Choi Yun Young,
Jeong Yuri,
Joo Min Kyung,
Jeong Byeongmoon
Publication year - 2009
Publication title -
macromolecular bioscience
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.924
H-Index - 105
eISSN - 1616-5195
pISSN - 1616-5187
DOI - 10.1002/mabi.200900095
Subject(s) - copolymer , ethylene glycol , chloroform , polymer chemistry , chemistry , ethylene , chemical engineering , materials science , polymer , organic chemistry , catalysis , engineering
Most organogel formation has been observed at low temperatures and the gel melts as the temperature increases. As an opposite case to traditional organogels, we report a reverse thermal gelation of methoxy‐aminopoly(ethylene glycol)‐homopolypeptide block‐copolymer chloroform solutions that undergo a sol‐to‐gel transition as the temperature increases. A series of methoxy‐aminopoly(ethylene glycol)‐homopolypeptide block copolymers showing reverse thermal gelation in chloroform was synthesized and we prove that the secondary structure of the polypeptide determines the morphology of the organogel.