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- W2074060449 endingPage "5166" @default.
- W2074060449 startingPage "5160" @default.
- W2074060449 abstract "Abstract Four unconventional triazine‐based dendrimers have been prepared and characterized by 1 H and 13 C NMR spectroscopies, mass spectrometry, and elemental analysis. Based on DSC studies, polarizing microscopy, and powder XRD, two of these dendrimers, containing linkers with an odd number of carbon atoms, were observed to display columnar liquid–crystalline phases during thermal treatment. However, the other two dendritic analogues, containing linkers with an even number of carbon atoms, were not observed to behave correspondingly. Based on computer simulation, we reasonably assume that the dendrimers with an odd number of carbon atoms in their linkers distort their molecular shape and adopt two isomeric structures due to asymmetrical congestion. This reduces the molecular π–π face‐to‐face interaction, which in turn causes the dendrimers to form columnar LC phases during thermal treatment. However, the dendrimers with an even number of carbon atoms in their linkers have more symmetrical skeletons and do not display any liquid–crystalline phase upon thermal treatment. This new strategy should be applicable for eliciting the columnar liquid–crystalline properties of other types of unconventional dendrimers with rigid frameworks." @default.
- W2074060449 created "2016-06-24" @default.
- W2074060449 creator A5001632026 @default.
- W2074060449 creator A5041433625 @default.
- W2074060449 creator A5062450947 @default.
- W2074060449 creator A5064888855 @default.
- W2074060449 creator A5080006222 @default.
- W2074060449 creator A5085998256 @default.
- W2074060449 date "2014-03-11" @default.
- W2074060449 modified "2023-10-18" @default.
- W2074060449 title "A Small Change in Central Linker Has a Profound Effect in Inducing Columnar Phases of Triazine-Based Unconventional Dendrimers" @default.
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