Synthesis and properties of thermotropic liquid crystalline polyamides - 文章详情页

作者：

收录：

EI Scopus PKU CSCD

摘要：

A　series　of　thermotropic　liquid　crystalline　polyamides(PEGOT)　with　high　molecular　weights　were　synthesized　by　solution　polycondensation　of　4,　4-diamino-3,　3-dimethylbiphenyl(OT)　with　polyethyleneglycol　bis(4-carboxyphenyl)　ethers　(PEGn,　n=1,　2).　Polymers　prepared　were　characterized　by　infrared　spectrum　(IR)　and　1H　nuclear　magnetic　resonance　spectrum　(1H-NMR),　and　their　expected　structures　were　identified.　These　thermotropic　polyamides　were　found　to　have　stable　nematic　mesophases　by　differential　scanning　calorimetry　(DSC)　and　polarizing　microscope　(POM).　Moreover,　their　crystallinity　and　thermal　stability　were　investigated　with　wide　angle　X-ray　diffraction　(WAXD),　differential　scanning　calorimetry　(DSC)　and　thermogravimetry　analysis(TGA).　And　the　results　of　this　work　can　be　valuable　and　provide　a　primary　reference　for　the　practical　application　of　these　thermotropic　polyamides.

关键词：

Calorimeters Crystallinity Differential scanning calorimetry Liquid crystals Magnetic resonance spectroscopy Nuclear magnetic resonance Polyamides Textures Thermodynamic stability Thermogravimetric analysis

作者机构：

[ 1 ] [Wang, Zhao]Key Laboratory of Advanced Functional Materials, College of Material Science and Engineering, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Zhang, Teng]Key Laboratory of Advanced Functional Materials, College of Material Science and Engineering, Beijing University of Technology, Beijing 100124, China
[ 3 ] [Suo, Hong-Li]Key Laboratory of Advanced Functional Materials, College of Material Science and Engineering, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Zhou, Bin]Key Laboratory of Advanced Functional Materials, College of Material Science and Engineering, Beijing University of Technology, Beijing 100124, China
[ 5 ] [Cheng, Yan-Ling]Key Laboratory of Advanced Functional Materials, College of Material Science and Engineering, Beijing University of Technology, Beijing 100124, China
[ 6 ] [Yuan, Hui-Ping]Key Laboratory of Advanced Functional Materials, College of Material Science and Engineering, Beijing University of Technology, Beijing 100124, China

通讯作者信息：

电子邮件地址：

honglisuo@bjut.edu.cn

查看成果更多字段

成果类型
所属机构

所有年份指定年份从至