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Chemically and Physically Induced (Reversible) Gelation of Organic Liquids by Monomeric and Polymeric Gelators
Author(s) -
George Mathew,
Luo Chuping,
Wang Caihua,
Carretti Emiliano,
Dei Luigi,
Weiss Richard G.
Publication year - 2005
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200550917
Subject(s) - monomer , phase transition , molecule , chemical engineering , phase (matter) , materials science , polymer chemistry , polymer , chemistry , organic chemistry , thermodynamics , engineering , physics
The properties of several types of organogels that can undergo a chemical transition during gelation or while in the gel phase are described. The transitions can be physically induced by light or chemically triggered by the addition of an acid or a neutral molecule such as CO 2 or CS 2 . In some cases, the gelation properties of the new species formed are markedly different from those of the precursors. The link between molecular structure and the nature of the gel networks as well as results obtained from the multidisciplinary tools used to study them are discussed.