Xu Junying, Yu Shengsheng, Zhong Keli, Jin Long Yi
Key Laboratory for Organism Resources of the Changbai Mountain and Functional Molecules, Department of Chemistry, College of Science, Yanbian University, Yanji133002, China.
College of Chemistry, Chemical Engineering and Food Safety, Bohai University, Jinzhou 121013, China.
Polymers (Basel). 2017 Dec 7;9(12):685. doi: 10.3390/polym9120685.
A series of bent-shaped molecules, consisting of dibenzo[]phenazine and phenyl groups connected together as a rod segment, and poly(ethylene oxide) (PEO) with a degree of polymerization (DP) of 6 as the coil segment, were synthesized. The self-assembling behavior of these molecules by differential scanning calorimetry (DSC), thermal optical polarized microscopy (POM), small-angle X-ray scattering spectroscopy (SAXS), atomic force microscopy (AFM), and transmission electron microscopy (TEM), revealed that carboxyl or butoxy carbonyl groups at the 11 position of dibenzo[]phenazine noticeably influence self-organization of molecules into supramolecular aggregates in bulk and aqueous solutions. Molecules and with chiral or non-chiral PEO coil chains and the carboxyl group at the rod segments self-organize into a hexagonal perforated lamellar structure and a hexagonal columnar structure in the solid state. In aqueous solution, molecules and self-assemble into diverse lengths of nanofibers, whereas molecules and with butoxy carbonyl groups exhibit a self-organizing capacity to form diverse sizes of spherical aggregates.
合成了一系列弯曲状分子，其由作为棒状链段连接在一起的二苯并[]吩嗪和苯基以及聚合度（DP）为6的聚环氧乙烷（PEO）作为卷曲链段组成。通过差示扫描量热法（DSC）、热光学偏光显微镜（POM）、小角X射线散射光谱（SAXS）、原子力显微镜（AFM）和透射电子显微镜（TEM）对这些分子的自组装行为进行研究，结果表明二苯并[]吩嗪11位上的羧基或丁氧基羰基对分子在本体和水溶液中自组装成超分子聚集体有显著影响。具有手性或非手性PEO卷曲链且棒状链段带有羧基的分子 和 在固态下自组装成六方穿孔层状结构和六方柱状结构。在水溶液中，分子 和 自组装成不同长度的纳米纤维而带有丁氧基羰基的分子 和 表现出形成不同尺寸球形聚集体的自组装能力。
