Synthesis, Characterization and Property Studies on a Methyl-substituted Poly(ether ether ketone) and Its Copolymers

Chem. J. Chinese Universities ›› 2003, Vol. 24 ›› Issue (10): 1911.

• Articles • Previous Articles Next Articles

Synthesis, Characterization and Property Studies on a Methyl-substituted Poly(ether ether ketone) and Its Copolymers

LI Hui^1,2, ZHOU Hong-Wei², CHEN Chun-Hai², WU Zhong-Wen², ZHANG Rong-Ben¹, YU Shu-Yan¹

1. Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China;
2. Jilin University Alan G. MacDiarmid Laboratory, National Plan R&D Center for High-Performance Engineering Plastics, Changchun 130023, China

Received:2002-09-11 Online:2003-10-24 Published:2003-10-24

Abstract

Abstract: Anovel soluble methyl-substituted poly(ether ether ketone) PETMDEK was synthesized for the first time by aromatic nucleophilic substitution polycondensation.Aseries of random copolymers PETMDEK-PEDEK with different compositions were prepared and their properties were studied.The copolymers exhibit changes from crystals→liquid crystals→crystals→amorphous solid transitions with the increase of the content of PETMDEK.The copolymers also change from soluble substance to insoluble one.The thermotropic liquid crystalline behavior of 20% PETMDEK-PEDEK copolymer was characterized by DSC and PLM.

Key words: Poly(ether ether ketone)s, Random copolymers, Thermotropic liquid crystal

CLC Number:

O631

TrendMD:

LI Hui, ZHOU Hong-Wei, CHEN Chun-Hai, WU Zhong-Wen, ZHANG Rong-Ben, YU Shu-Yan . Synthesis, Characterization and Property Studies on a Methyl-substituted Poly(ether ether ketone) and Its Copolymers[J]. Chem. J. Chinese Universities, 2003, 24(10): 1911.

[1]	YANG Yan-Hua, DAI Xiao-Hui, ZHOU Bing, MA Rong-Tang, JIANG Zhen-Hua . Synthesis and Characterization of Block Copolymers Containg Poly(aryl ether ketone) and Liquid Crystalline Polyester Segments [J]. Chem. J. Chinese Universities, 2005, 26(3): 589.
[2]	LIU Chen-Guang, NA Hui, ZHAO Cheng-Ji, WU Zhong-Wen . Synthesis, Characterization and Properties of the Novel Sulfonated Poly(ether ether ketone)s [J]. Chem. J. Chinese Universities, 2004, 25(12): 2359.
[3]	YU Ruo-Bing, ZHOU Chi-Xing, YU Wei . Relationship Between Rheology Behavior of TLCP/PEI Blend System and Its Multi-scales of Structure [J]. Chem. J. Chinese Universities, 2004, 25(11): 2140.
[4]	LIU Sheng-Zhou, WANG Feng, CHEN Tian-Lu . Synthesis and Characterization of a Series of High Sulfonated Poly(ether ether ketone)s [J]. Chem. J. Chinese Universities, 2001, 22(3): 494.
[5]	FU Lu-Xiang, ZHANG Shan-Ju, ZHANG Jian, LIU Jing-Jiang, YANG De-Cai, SUN Hui, WANG Gui-Bin, WU Zhong-Wen  . The Single Crystal-like Banded Textures in the Films of a Thermotropic Liquid Crystalline Poly(aryl ether ketone) Containing a Lateral Chloro Group [J]. Chem. J. Chinese Universities, 2000, 21(6): 988.
[6]	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.
[7]	RUAN Wen-Hong, SHEN Jing-Wei, LI Bai-Qian. Studies on Nucleation of Cellulose Aromatic Ester Thermotropic Liquid Crystal on Polyethylene Terephthalate [J]. Chem. J. Chinese Universities, 1998, 19(3): 469.
[8]	ZHANG Dong, ZHOU Qi-Feng, MA Yu-Guo, WAN Xin-Hua, FENG Xin-De. Synthesis of Liquid Crystalline Aromatic Amide Compounds [J]. Chem. J. Chinese Universities, 1997, 18(6): 963.
[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]	ZHANG Hai-Liang, TAN Song-Ting, ZHU Zhi-Qiang, WANG Xia-Yu. A New Synthetic Method of Liquid Crystalline Polyesters with Flexible Polymethylene Spacer [J]. Chem. J. Chinese Universities, 1997, 18(11): 1893.
[11]	DONG De-Wen, NI Yu-Shan, ZHUANG Hui-Yan, CHI Zhen-Guo, CHEN Yu. Kinetics of Non-Isothermal Phase Transition of Poly(ester-imide) [J]. Chem. J. Chinese Universities, 1995, 16(5): 804.
[12]	ZHANG Qi-Zhen, LI Xiao-Fang. Synthesis and Liquid Crystalline Behavior of Thermotropic Copolyethers with Azoxybenzene Mesogens [J]. Chem. J. Chinese Universities, 1994, 15(4): 612.
[13]	ZHANG Qi-Zhen, WANG Yan, Hou Jian-An, Xu Mao. Studies on Photochromic Liquid Crystalline Polymers(Ⅳ)─Liquid Crystalline Behavior of Side-Chain Copolysiloxanes Cotaining 4-Methoxyphenyl Benzoate Mesogens and Azobenzene Photochromic Groups [J]. Chem. J. Chinese Universities, 1994, 15(10): 1563.
[14]	ZHU Zhen, WU He-rong, LI Shi-Jin. A New Method for Judging the Phase States of Liquid Crystalline Polymers [J]. Chem. J. Chinese Universities, 1992, 13(2): 252.
[15]	Li Zifa, Zhang Ziyong, Zhou Qifeng. Thermotropic Liquid Crystalline Sequential Block Copolyesters [J]. Chem. J. Chinese Universities, 1989, 10(6): 634.

Synthesis, Characterization and Property Studies on a Methyl-substituted Poly(ether ether ketone) and Its Copolymers

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments