<em>L</em>-苯丙氨酸衍生物与脂肪胺构筑双组分超分子凝胶

引用本文: 钟金莲, 潘虹, 罗序中, 洪三国, 张宁, 黄建滨. L-苯丙氨酸衍生物与脂肪胺构筑双组分超分子凝胶[J]. 物理化学学报, 2014, 30(9): 1688-1696. doi: 10.3866/PKU.WHXB201407041 shu

Citation: ZHONG Jin-Lian, PAN Hong, LUO Xu-Zhong, HONG San-Guo, ZHANG Ning, HUANG Jian-Bin. Two-Component Supramolecular Organogels Formed from L-Phenylalanine Derivatives and Aliphatic Amines[J]. Acta Physico-Chimica Sinica, 2014, 30(9): 1688-1696. doi: 10.3866/PKU.WHXB201407041 shu

L-苯丙氨酸衍生物与脂肪胺构筑双组分超分子凝胶

钟金莲 ^1,2, ,
潘虹 ^2, ,
罗序中 ^2, ,
洪三国 ^1, ,
张宁 ^1, ,
黄建滨 ^3,

基金项目:
国家自然科学基金（51268002)

江西省自然科学基金（201114BNB213008)

江西省教育厅项目（GJJ11707)

江西省&ldquo

赣鄱英才555工程&rdquo

专项资助

摘要:

设计合成了系列单链L-苯丙氨酸衍生物，该系列衍生物单组分没有胶凝性能. 选择脂肪胺作为配对物，与L-苯丙氨酸衍生物组成双组分体系后能够胶凝许多有机溶剂形成凝胶. 流变学测试显示该凝胶体系弹性模量（G’）比粘性模量（G"）约高一个数量级，有着很好的机械性能，并且呈现出典型的类固体的流变学行为. 傅里叶变换红外（FT-IR）光谱、核磁共振（NMR）谱、小角X射线衍射（SAXS）和扫描电镜（SEM）结果表明，凝胶中胶凝剂分子形成纤维状或片层状的聚集体，羧基（―COOH）和氨基（―NH₂）的酸碱作用、酰胺基团间（―CONH―）的氢键作用以及分子间范德华作用力是形成该凝胶的主要驱动力. 凝胶中胶凝剂分子自组装形成具有周期性的层状有序结构，层状结构进一步组装形成纤维状聚集体，最终形成三维网状结构阻碍溶剂流动形成凝胶.

关键词:

English

Two-Component Supramolecular Organogels Formed from L-Phenylalanine Derivatives and Aliphatic Amines

1.
1. Department of Chemistry, Nanchang University, Nanchang 330031, P. R. China;
2. Key Laboratory of Orgaro-phamaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, Jiangxi Province, P. R. China;
3. College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China
Received Date: 31 March 2014
Available Online: 29 August 2014
Fund Project:
国家自然科学基金（51268002)

江西省自然科学基金（201114BNB213008)

江西省教育厅项目（GJJ11707)

江西省&ldquo

赣鄱英才555工程&rdquo

专项资助

Abstract:

A series of monochain L-phenylalanine derivatives were synthesized. L-Phenylalanine derivatives have no gelation abilities, but two-component systems consisting of L-phenylalanine derivatives and aliphatic amines can gelate various organic liquids. The structures of the aggregates in the organogels were investigated using Fourier-transform infrared spectroscopy (FT-IR), nuclear magnetic resonance (NMR) spectroscopy, smallangle X-ray scattering (SAXS), rheological methods, and scanning electron microscopy (SEM). The rheological measurements showed that the steady-state value of the storage elastic modulus (G') was about 10 times larger than that of the loss elastic modulus (G"), indicating that the organogels have od mechanical properties and gel-like characteristics. The SEM, FT-IR, and ¹H NMR results showed that two-component organogels can self-assemble into fibrous or lamellar aggregates in organic liquids through acid-base interactions, intermolecular hydrogen bonding of amide groups, and van der Waals interactions of long alkyl chains. The FT-IR and NMR spectra showed that the hydrogen-bonding and acid-base interactions were the main driving forces for the formation of self-assembled gels. The SAXS results indicated that the gelator molecules assembled into ordered lamellar structures in organic liquids. The ordered lamellar aggregates are juxtaposed and interlocked by van der Waals interactions to form a fibrous superstructure and are finally immobilized in the organic liquid.

Key words:

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沈阳化工大学材料科学与工程学院沈阳 110142

L-苯丙氨酸衍生物与脂肪胺构筑双组分超分子凝胶

English

Two-Component Supramolecular Organogels Formed from L-Phenylalanine Derivatives and Aliphatic Amines

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

L-苯丙氨酸衍生物与脂肪胺构筑双组分超分子凝胶

English

Two-Component Supramolecular Organogels Formed from L-Phenylalanine Derivatives and Aliphatic Amines

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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