Rapidly Recoverable Thixotropic Hydrogels from the Racemate of Chiral OFm Monosubstituted Cyclo(Glu-Glu) Derivatives,Langmuir

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Rapidly Recoverable Thixotropic Hydrogels from the Racemate of Chiral OFm Monosubstituted Cyclo(Glu-Glu) Derivatives
Langmuir ( IF 3.7 ) Pub Date : 2017-11-22 00:00:00 , DOI: 10.1021/acs.langmuir.7b03527
Lu Wang ₁ , Xin Jin ₁ , Lin Ye ₁ , Ai-ying Zhang ₁ , Deon Bezuidenhout ₂ , Zeng-guo Feng ₁

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Both chiral OFm monosubstituted cyclo(l-Glu-l-Glu) and cyclo(d-Glu-d-Glu) display a robust gelation ability in a variety of organic solvents and water. In contrast to an individual enantiomer, their racemate can form rapidly recoverable thixotropic hydrogels with a remarkably shorter thixotropic recovery time. This unexpected thixotropic behavior is induced by the random arrangement of d- and l-enantiomers in the cell units, leading to the formation of “pseudoracemate”, noncrystalline self-assemblies in the resulting 3D fibrous network.

中文翻译：

从手性OFm单取代的环（Glu-Glu）衍生物的外消旋物中可快速恢复的触变性水凝胶

两个手性OFM单取代的环（升-Glu-升-Glu）和环（d -Glu- d -Glu）显示一个健壮凝胶化在多种有机溶剂和水的能力。与单个对映异构体相反，它们的外消旋体可以形成可快速恢复的触变水凝胶，而触变恢复时间明显缩短。d-和l-对映异构体在细胞单元中的随机排列可诱发这种意想不到的触变行为，导致在最终的3D纤维网络中形成“伪外消旋体”，非晶态自组装体。

更新日期：2017-11-22

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