Kim Ju-Yong, Lee Jae-Jin, Choi Suk-Won
Department of Advanced Materials Engineering for Information & Electronics, Integrated Education Institute for Frontier Science & Technology (BK21 Four), Kyung Hee University, Yongin 17104, Korea.
Polymers (Basel). 2022 Jul 11;14(14):2823. doi: 10.3390/polym14142823.
In this paper, a binary mixture system consisting of an achiral bent-core molecule and a bent-core base main-chain polymer is described. The mixture exhibits an intriguing nanosegregated phase generated by the phase separation of the helical nanofilament B4 phase (originating from the bent-core molecule) and the dark conglomerate phase (originating from the bent-core base main-chain polymer). This nanosegregated phase was identified using polarized optical microscopy, differential scanning calorimetry, and X-ray diffraction analysis. In this nanosegregated phase, the enantiomeric domains grew to a few millimeters and a giant circular dichroism was observed. The structural chirality of the helical nanofilament B4 phase affected the conformation of the bent-core base main-chain polymer embedded within the helical nanofilament networks of bent-core molecules.
本文描述了一种由非手性弯曲核分子和弯曲核主链聚合物组成的二元混合体系。该混合物呈现出一种有趣的纳米相分离结构，它由螺旋纳米丝B4相（源自弯曲核分子）和深色团聚相（源自弯曲核主链聚合物）的相分离产生。通过偏光显微镜、差示扫描量热法和X射线衍射分析对这种纳米相分离结构进行了鉴定。在这种纳米相分离结构中，对映体畴生长到几毫米，并观察到巨大的圆二色性。螺旋纳米丝B4相的结构手性影响了嵌入弯曲核分子螺旋纳米丝网络中的弯曲核主链聚合物的构象。
