The WCU Centre for Synthetic Polymer Bioconjugate Hybrid Materials, Department of Polymer Science and Engineering, Pusan National University, Pusan 609-735, Korea.
Langmuir. 2010 Dec 7;26(23):17890-5. doi: 10.1021/la103480p. Epub 2010 Nov 4.
A series of amphiphilic monochain derivatives of stearic acid, CH(3)(CH(2))(16)CONH(CH(2))(n)NH(2) (n = 2, 3, 4, 6), CH(3)(CH(2))(16)CONH(CH(2))(2)S(2)(CH(2))(2)NH(2), and CH(3)(CH(2))(16)CONH(CH(2))(2), are synthesized, and their self-assembly behaviors have been investigated in 1,2-dichloroethane (DCE). In addition to the concentration of the compound in DCE, the number of methylene units in hydrophilic segments play a crucial role in determining the final morphology of self-assembling structures from nanotubules with 20 nm inner diameter to microspheres with an average diameter of 20 μm. The external texture of the microsphere is also influenced by the number of methylene units in the hydrophilic segment. The microspheres formed by highly ordered aggregation of nanobelts show high thermal stability. The particular processes and causations have been expatiated.
合成了一系列具有两亲性的硬脂酸单链衍生物，CH(3)(CH(2))(16)CONH(CH(2))(n)NH(2)（n=2、3、4、6）、CH(3)(CH(2))(16)CONH(CH(2))(2)S(2)(CH(2))(2)NH(2)和CH(3)(CH(2))(16)CONH(CH(2))(2)，并在 1,2-二氯乙烷（DCE）中研究了它们的自组装行为。除了 DCE 中化合物的浓度外，亲水段中亚甲基单元的数量在决定自组装结构的最终形态方面起着至关重要的作用，自组装结构从内径为 20nm 的纳米管到平均直径为 20μm 的微球。亲水段中亚甲基单元的数量也影响着微球的外部纹理。由纳米带高度有序聚集形成的微球表现出较高的热稳定性。阐述了特定的过程和原因。
