Lyotropic liquid crystalline epoxide-amine addition polymers |
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Authors: | Felix?Weiss Email author" target="_blank">Heino?FinkelmannEmail author |
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Institution: | (1) Institut für Makromolekulare Chemie, Universität Freiburg, Stefan-Meier-Strasse 31, 79104 , Freiburg, Germany |
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Abstract: | A new type of amphiphilic polymer is described. It is built up from a hydrophilic main chain and hydrophobic n-alkyl chains directly attached to the monomer units. With this chemical constitution the formation of micelles and micellar aggregates is expected, where the hydrophobic side chains are organised on a convex surface. The polymers are synthesised by the polyaddition of tetra-, hexa- and octaethylene diglycidyl ether and n-dodecyl- and n-hexadecyl amine. Polymers are synthesised by systematic variation of the hydrophilic/lipophilic balance (HLB). Although the HLB of the polymers is varied, only a uniform polymorphism is observed in aqueous solutions. A broad miscibility gap and a hexagonal phase at polymer concentrations of 70–80 wt.% polymer exist. Due to the new head-type constitution of the polymers, the hexagonal phase is expected to be of the inverse type. |
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Keywords: | Lyotropic Linear epoxide-amine addition polymer Head-type Phase behaviour Inverse hexagonal phase |
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