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231223s2010 xx |||||o 00| ||eng c |
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|a 10.1021/la101921c
|2 doi
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|a pubmed24n0667.xml
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|a DE-627
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| 041 |
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|a eng
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| 100 |
1 |
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|a Jang, Kyoungmi
|e verfasserin
|4 aut
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| 245 |
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|a Organogels from functionalized T-shaped pi-conjugated bisphenazines
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|c 2010
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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| 500 |
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|a Date Completed 22.11.2010
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|a Date Revised 10.08.2010
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a This paper reports the electronic and organogelation properties of novel T-shaped bisphenazines functionalized with alkyl side groups and small peripheral cyano (CN) or aldehyde (CHO) substituents. UV-vis spectroscopy and cyclic voltammetry show the effect of the position, type, and number of the peripheral substituents on the electronic properties of the entire system. Interesting organogelation properties including a thixotropic behavior were observed from these T-shaped bisphenazines. We describe important findings from an in-depth characterization on the fibers formed by organogelation: (i) The position of the peripheral substituents influences the fiber morphology by modulating the intermolecular CN (or CHO) interaction and the pi-pi stacking. (ii) Compounds with CHO groups form islands of fiber aggregates, which is not the case for compounds with CN groups. (iii) Decyl-substituted compounds show higher gelation temperatures (i.e., produce stronger gels) than hexadecyl-substituted ones. (iv) The thixotropic behavior originates from an extensive three-dimensional entanglement of very thin, flexible fibers
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|a Journal Article
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1 |
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|a Ranasinghe, Asanga D
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Heske, Clemens
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lee, Dong-Chan
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 26(2010), 16 vom: 17. Aug., Seite 13630-6
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|g volume:26
|g year:2010
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|g day:17
|g month:08
|g pages:13630-6
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|u http://dx.doi.org/10.1021/la101921c
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