Citation: Jing-wu Wang, Shi-jun Zheng, Xiao-hui Xu, Xing-qi Zhu, Shu-yuan Zhang, Tie-sheng Li, Zi-fa Li. SYNTHESIS OF MAIN CHAIN LIQUID CRYSTALLINE COPOLYESTERS WITH X-SHAPED TWO-DIMENSIONAL MESOGENIC UNIT AND CROWN ETHER CYCLE[J]. Chinese Journal of Polymer Science, ;2005, 23(5): 549-556. shu

SYNTHESIS OF MAIN CHAIN LIQUID CRYSTALLINE COPOLYESTERS WITH X-SHAPED TWO-DIMENSIONAL MESOGENIC UNIT AND CROWN ETHER CYCLE

Corresponding author: Zi-fa Li,
Received Date: 21 October 2004
Revised Date: 7 March 2005

A novel series of main chain liquid crystalline copolyesters with X-shaped two-dimensional mesogenic unit and crown ether cycle of cis-4,4-bis(4-hydroxyphenylazo) dibenzo-18-crown-6 was prepared via solution condensation polymerization from 4,4-(a,w-hexanedioyloxy) dibenzoyl dichloride (M1), 2,5-bis(p-octyloxybenzoyloxy) hydro-quinone (M2) and cis-4,4-bis(4-hydroxyphenylazo) dibenzo-18-crown-6 (M3). Monomer M1 was synthesized by esterification and substitution of adipoyl chloride with p-hydroxybenzoic acid, monomer M2 was synthesized by esterfication and reduction reaction of 2,5-dihydroxybenzoquinone and p-octanoxybenzoyl chloride and monomer M3 was synthesized by diazotization and coupling reaction of cis-diaminodibenzo-18-crown-6 with phenol. The molecular weights of copolyesters are not high, and the intrinsic viscosity [h] of copolyesters ranges from 0.25-0.35. The monomers’ structures were identified by using elemental analysis, IR, UV, 1H-NMR, MS, etc. All the copolyesters are yellowish powders and insoluble in THF and CHCl3 at room temperature except CP9. The properties of copolyesters were investigated by using GPC, [h] , DSC, TG, WAXD and POM. It was found that all the copolyesters entered into liquid crystal phase when they were heated to above their melting temperature (Tm). The typical smectic and nematic phase texture can be observed on POM. Their mesophase transition temperature and thermal stability change regularly with varying the content of cis-4,4-bis(4-hydroxyphenylazo) dibenzo-18-crown-6 unit in the copolyesters.
1. [1]
  Zhenzhu Wang , Chenglong Liu , Yunpeng Ge , Wencan Li , Chenyang Zhang , Bing Yang , Shizhong Mao , Zeyuan Dong . Differentiated self-assembly through orthogonal noncovalent interactions towards the synthesis of two-dimensional woven supramolecular polymers. Chinese Chemical Letters, 2024, 35(5): 109127-. doi: 10.1016/j.cclet.2023.109127
2. [2]
  Xin-Tong Zhao , Jin-Zhi Guo , Wen-Liang Li , Jing-Ping Zhang , Xing-Long Wu . Two-dimensional conjugated coordination polymer monolayer as anode material for lithium-ion batteries: A DFT study. Chinese Chemical Letters, 2024, 35(6): 108715-. doi: 10.1016/j.cclet.2023.108715
3. [3]
  Tian Yang , Yi Liu , Lina Hua , Yaoyao Chen , Wuqian Guo , Haojie Xu , Xi Zeng , Changhao Gao , Wenjing Li , Junhua Luo , Zhihua Sun . Lead-free hybrid two-dimensional double perovskite with switchable dielectric phase transition. Chinese Chemical Letters, 2024, 35(6): 108707-. doi: 10.1016/j.cclet.2023.108707
4. [4]
  Zhuoer Cai , Yinan Zhang , Xiu-Ni Hua , Baiwang Sun . Phase transition arising from order-disorder motion in stable layered two-dimensional perovskite. Chinese Journal of Structural Chemistry, 2024, 43(11): 100426-100426. doi: 10.1016/j.cjsc.2024.100426
5. [5]
  Zhihong LUO , Yan SHI , Jinyu AN , Deyi ZHENG , Long LI , Quansheng OUYANG , Bin SHI , Jiaojing SHAO . Two-dimensional silica-modified polyethylene oxide solid polymer electrolyte to enhance the performance of lithium-ion batteries. Chinese Journal of Inorganic Chemistry, 2024, 40(5): 1005-1014. doi: 10.11862/CJIC.20230444
6. [6]
  Lu LIU , Huijie WANG , Haitong WANG , Ying LI . Crystal structure of a two-dimensional Cd(Ⅱ) complex and its fluorescence recognition of p-nitrophenol, tetracycline, 2, 6-dichloro-4-nitroaniline. Chinese Journal of Inorganic Chemistry, 2024, 40(6): 1180-1188. doi: 10.11862/CJIC.20230489
7. [7]
  Xuan Zhu , Lin Zhou , Xiao-Yun Huang , Yan-Ling Luo , Xin Deng , Xin Yan , Yan-Juan Wang , Yan Qin , Yuan-Yuan Tang . (Benzimidazolium)2GeI4: A layered two-dimensional perovskite with dielectric switching and broadband near-infrared photoluminescence. Chinese Journal of Structural Chemistry, 2024, 43(6): 100272-100272. doi: 10.1016/j.cjsc.2024.100272
8. [8]
  Yuting Wu , Haifeng Lv , Xiaojun Wu . Design of two-dimensional porous covalent organic framework semiconductors for visible-light-driven overall water splitting: A theoretical perspective. Chinese Journal of Structural Chemistry, 2024, 43(11): 100375-100375. doi: 10.1016/j.cjsc.2024.100375
9. [9]
  Changhui Yu , Peng Shang , Huihui Hu , Yuening Zhang , Xujin Qin , Linyu Han , Caihe Liu , Xiaohan Liu , Minghua Liu , Yuan Guo , Zhen Zhang . Evolution of template-assisted two-dimensional porphyrin chiral grating structure by directed self-assembly using chiral second harmonic generation microscopy. Chinese Chemical Letters, 2024, 35(10): 109805-. doi: 10.1016/j.cclet.2024.109805
10. [10]
  Ning DING , Siyu WANG , Shihua YU , Pengcheng XU , Dandan HAN , Dexin SHI , Chao ZHANG . Crystalline and amorphous metal sulfide composite electrode materials with long cycle life: Preparation and performance of hybrid capacitors. Chinese Journal of Inorganic Chemistry, 2024, 40(9): 1784-1794. doi: 10.11862/CJIC.20240146
11. [11]
  Shuwen SUN , Gaofeng WANG . Two cadmium coordination polymers constructed by varying Ⅴ-shaped co-ligands: Syntheses, structures, and fluorescence properties. Chinese Journal of Inorganic Chemistry, 2024, 40(3): 613-620. doi: 10.11862/CJIC.20230368
12. [12]
  Keke Han , Wenjun Rao , Xiuli You , Haina Zhang , Xing Ye , Zhenhong Wei , Hu Cai . Two new high-temperature molecular ferroelectrics [1,5-3.2.2-Hdabcni]X (X = ClO₄⁻, ReO₄⁻). Chinese Chemical Letters, 2024, 35(6): 108809-. doi: 10.1016/j.cclet.2023.108809
13. [13]
  Hong-Jin Liao , Zhu Zhuo , Qing Li , Yoshihito Shiota , Jonathan P. Hill , Katsuhiko Ariga , Zi-Xiu Lu , Lu-Yao Liu , Zi-Ang Nan , Wei Wang , You-Gui Huang . A new class of crystalline X-ray induced photochromic materials assembled from anion-directed folding of a flexible cation. Chinese Chemical Letters, 2024, 35(8): 109052-. doi: 10.1016/j.cclet.2023.109052
14. [14]
  Jingqi Ma , Huangjie Lu , Junpu Yang , Liangwei Yang , Jian-Qiang Wang , Xianlong Du , Jian Lin . Rational design and synthesis of a uranyl-organic hybrid for X-ray scintillation. Chinese Journal of Structural Chemistry, 2024, 43(5): 100275-100275. doi: 10.1016/j.cjsc.2024.100275
15. [15]
  Chao LIU , Jiang WU , Zhaolei JIN . Synthesis, crystal structures, and antibacterial activities of two zinc(Ⅱ) complexes bearing 5-phenyl-1H-pyrazole group. Chinese Journal of Inorganic Chemistry, 2024, 40(10): 1986-1994. doi: 10.11862/CJIC.20240153
16. [16]
  Yu Pang , Min Wang , Ning-Hua Yang , Min Xue , Yong Yang . One-pot synthesis of a giant twisted double-layer chiral macrocycle via [4 + 8] imine condensation and its X-ray structure. Chinese Chemical Letters, 2024, 35(10): 109575-. doi: 10.1016/j.cclet.2024.109575
17. [17]
  Xiao Zhu , Yanbing Mo , Jiawei Chen , Gaopan Liu , Yonggang Wang , Xiaoli Dong . A weakly-solvated ether-based electrolyte for fast-charging graphite anode. Chinese Chemical Letters, 2024, 35(8): 109146-. doi: 10.1016/j.cclet.2023.109146
18. [18]
  Xiping Dong , Xuan Wang , Zhixiu Lu , Qinhao Shi , Zhengyi Yang , Xuan Yu , Wuliang Feng , Xingli Zou , Yang Liu , Yufeng Zhao . Construction of Cu-Zn Co-doped layered materials for sodium-ion batteries with high cycle stability. Chinese Chemical Letters, 2024, 35(5): 108605-. doi: 10.1016/j.cclet.2023.108605
19. [19]
  Yifei Zhang , Yuncong Xue , Laiwei Gao , Rui Liao , Feng Wang , Fei Wang . Merging non-covalent and covalent crosslinking: En route to single chain nanoparticles. Chinese Chemical Letters, 2024, 35(6): 109217-. doi: 10.1016/j.cclet.2023.109217
20. [20]
  Haoran Shi , Jiaxin Wang , Yuqin Zhu , Hongyang Li , Guodong Ju , Lanlan Zhang , Chao Wang . Highly selective α-C(sp³)-H arylation of alkenyl amides via nickel chain-walking catalysis. Chinese Chemical Letters, 2024, 35(7): 109333-. doi: 10.1016/j.cclet.2023.109333

Get Citation

PDF

XML

Metrics

PDF Downloads(0)
Abstract views(426)
HTML views(1)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return