Synthesis of New Liquid Crystal Polymers with T-Shaped Two-Dimensional Mesogenic Units

Chem. J. Chinese Universities ›› 1994, Vol. 15 ›› Issue (11): 1723.

• Articles • Previous Articles Next Articles

Synthesis of New Liquid Crystal Polymers with T-Shaped Two-Dimensional Mesogenic Units

LI Zi-Fa¹, CHEN Zhi-Jun¹, ZHANG Shu-Yuan¹, WANG Jing-Wu¹, ZHOU Qi-Feng²

1. Department of Material Engineering, Zhengzhou University, Zhengzhou, 450052;
2. Department of Chemistry, Peking University

Received:1993-11-27 Revised:1994-04-20 Online:1994-11-24 Published:1994-11-24

Abstract

Abstract: Two new kinds of polymers were synthesized by low temperature solution polycondensation by using N-2, 5-dihydroxy benzylidene-4-substitued aniline and diacid chloride with different structures as the monomer. The liquid-crystalline behavior of the polymers was characterized by DSC, polarizing microscopy with a heatlng stage and X-ray diffractometer.It was found that one kind of the polymers was nematic thermotropic liquid crystal polymers, and the other kind of polymers was non-liquid-crystalline. The intrinsic viscosities, T_m and T_i of the polymers changed regularly with the change of the structure of the monomers.

Key words: Liquid crystalline polymer, T-shped two-dimensional mesogens, Synthesis of polymer

TrendMD:

LI Zi-Fa, CHEN Zhi-Jun, ZHANG Shu-Yuan, WANG Jing-Wu, ZHOU Qi-Feng. Synthesis of New Liquid Crystal Polymers with T-Shaped Two-Dimensional Mesogenic Units[J]. Chem. J. Chinese Universities, 1994, 15(11): 1723.

[1]	CHEN Xiao-Fang, FAN Xing-He, WAN Xin-Hua, ZHOU Qi-Feng*. Review and Progress in the Study of Mesongen-Jacketed Liquid Crystalline Polymer [J]. Chem. J. Chinese Universities, 2008, 29(1): 1.
[2]	ZHANG Jun, HE Jia-Song . The Interfacial Compatibilization for PSF/LCP Blends by a Maleic Anhydride Modified Polysulfone [J]. Chem. J. Chinese Universities, 2001, 22(8): 1419.
[3]	FAN Guang-Yu, ZHAO Xiao-Guang, ZHOU En-Le, TIAN Yan-Qing. Synthesis and Characterization of Side Chain Liquid Crystal M5MPP/MMEANB Copolymers Containing NLO Active Group [J]. Chem. J. Chinese Universities, 2001, 22(2): 307.
[4]	ZHANG Shan-Ju, FU Lu-Xiang, YANG De-Cai, SUN Hui, WANG Gui-Bin, WU Zhong-Wen. Studies on the Structure and Properties of Thermotropic Liquid Crystalline Poly(aryl ether ketone)s [J]. Chem. J. Chinese Universities, 2001, 22(2): 334.
[5]	MI Qi-Ding, WAN Xin-Hua, ZHOU Qi-Feng . Synthesis of Poly-[2.5-bis(4'-methoxybenzoyloxy)benzyl acrylate] and Poly-[2, 5-bis(4' -methoxybenzoyloxy)benzyl methacrylate] [J]. Chem. J. Chinese Universities, 2000, 21(5): 822.
[6]	XIE Xiao-Lin, LI Bo-Geng, PAN Zu-Ren . Synthesis of Rigid Long Sidechain Liquid Crystalline Polymers with Intermolecular Hydrogen Bonds [J]. Chem. J. Chinese Universities, 1999, 20(3): 489.
[7]	SUN Hui, ZHENG Yu-Bin, ZHANG Wan-Jin, WU Zhong-Wen . The Thermotropic Liquid Crystalline Behavior of a Novel Poly(aryl ether ketone) [J]. Chem. J. Chinese Universities, 1999, 20(12): 1985.
[8]	ZHANG Shan-Ju, ZHENG Yu-Bin, WU Zhong-Wen, TIAN Ming-Wen, YANG De-Cai . The Synthesis and Characterization of the Novel Poly(aryl ether ketone)s with Liquid Crystallinity [J]. Chem. J. Chinese Universities, 1998, 19(6): 984.
[9]	ZHANG Shan-Ju, ZHENG Yu-Bin, YU Zhong-Wen, TIAN Ming-Wen, YANG De-Cai. A Full Aromatic Thermotropic Liquid Crystalline Poly(aryl ether ketone) [J]. Chem. J. Chinese Universities, 1997, 18(3): 484.
[10]	LI Cong-wu, PAN ang, YANG Ji-hua, BAI Yu-hai, TIAN Yan-qing, XU Wei-qing, ZHAO Bing, ZHAO Ying-ying, LI Tie-jin, WANG Yan. Spectroscopic Studies on LB Film of a Liquid Crystalline Polymaleic Acid Polymer(Ⅰ) [J]. Chem. J. Chinese Universities, 1995, 16(S1): 237.
[11]	TIAN Yan-qing, XU Xiao-he, ZHAO Ying-ying, TANG Xin-yi, LI Tie-jin, LI Chong-wu, PAN Ang. Synthesis of a New Self-Assembly Liquid Crystalline Polymer Through Intermolecular Hydrogen Bonding [J]. Chem. J. Chinese Universities, 1995, 16(S1): 83.
[12]	LI Min, ZHOU En-Le, XU Ji-Ping. Ultrastructure of Liquid Crystalline Polyacrylates Containing p-Nitro Azobenzene [J]. Chem. J. Chinese Universities, 1995, 16(4): 635.
[13]	ZNANG Qi-Zhen, WANG Yan, HOU Jian-An, XU Mao. Studies on Photochromic Liquid Crystalline Polymers (Ⅲ)─Liquid Crystalline Behavior of Side-Chain Copolysiloxanes Containing Cholesteric Mesogens and Azobenzene Photochromic Groups [J]. Chem. J. Chinese Universities, 1994, 15(8): 1240.
[14]	XING Pei-Xiang, ZHAO Ying-Ying, TANG Xin-Yi, JIANG Bing-Zheng. Studies on a Side Chain Liquid Crystalline Polymer Self-Assembling Through Intermolecular Hydrogen Bond [J]. Chem. J. Chinese Universities, 1994, 15(8): 1248.
[15]	ZHANG Qi-Zhen, WANG Yan. Studies on Photochromic Liquid Crystalline Polymers(Ⅰ)─Liquid Crystalline Behaviour or Side-Chain Polysiloxane Containing Cholesteric Mesogens and Its Monomer [J]. Chem. J. Chinese Universities, 1994, 15(6): 928.

Synthesis of New Liquid Crystal Polymers with T-Shaped Two-Dimensional Mesogenic Units

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments