title: A new class of low-molecular-weight amphiphilic gelators.
abstract: A new powerful class of low-molecular-weight amphiphilic compounds has been synthesized and their structure-property relationships with respect to their gelation ability of organic solvents have been investigated. These compounds are able to gel organic solvents over a broad range of polarity. Especially polar solvents such as valeronitrile and gamma-butyrolactone can be gelled even at concentrations far below 1 wt %. It was found that the gelation ability of these asymmetrically substituted p-phenylendiamines depends on a well-balanced relation of the terminal head group, the units involved in hydrogen bonding (amide or urea groups), and on the length of the alkyl chain. With this class of new gelators it is possible to tailor thermal and mechanical properties in different organic solvents and open various application possibilities.
authors.affiliation: Macromolecular Chemistry I, Bayreuther Institut für Makromolekülforschung (BIMF) and Bayreuther Zentrum für Grenzflächen und Kolloide (BZKG), University Bayreuth, 95440 Bayreuth, Germany.
authors.forename: Nils
authors.initials: N
authors.lastname: Mohmeyer
authors.forename: Hans-Werner
authors.initials: HW
authors.lastname: Schmidt
mesh_terms: D015107:4-Butyrolactone / Q000737:chemistry; D005782:Gels / Q000737:chemistry; D006860:Hydrogen Bonding; D015394:Molecular Structure; D008970:Molecular Weight; D009570:Nitriles / Q000737:chemistry; D010420:Pentanes / Q000737:chemistry; D010655:Phenylenediamines / Q000138:chemical synthesis / Q000737:chemistry*; D013501:Surface-Active Agents / Q000138:chemical synthesis / Q000737:chemistry* / Q000145:classification
chemical_list: D005782:Gels; D009570:Nitriles; D010420:Pentanes; D010655:Phenylenediamines; D013501:Surface-Active Agents; C055904:n-valeronitrile; D015107:4-Butyrolactone; C029728:4-phenylenediamine