SYNTHESIS AND CHARACTERIZATION OF THERMOTROPIC POLYAMIDE LIQUID CRYSTALLINE BLOCK COPOLYMERS

ZHANG Wenxiong; LI Mingmin; JING Qi; LIU Jingbing

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SYNTHESIS AND CHARACTERIZATION OF THERMOTROPIC POLYAMIDE LIQUID CRYSTALLINE BLOCK COPOLYMERS

Research Article | 更新时间：2021-08-24

- SYNTHESIS AND CHARACTERIZATION OF THERMOTROPIC POLYAMIDE LIQUID CRYSTALLINE BLOCK COPOLYMERS
- Acta Polymerica Sinica Issue 11, Pages: 1069-1073(2007)
- 作者机构：
  
  1. 北京工业大学材料科学与工程学院
  2. 北京工业大学材料科学与工程学院,北京,100022
- 作者简介：
- 基金信息：
- DOI：
  CLC： O633.22
- Published：2007，
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[1]张文熊,李名敏,井琦,刘晶冰.一种热致液晶聚酰胺嵌段共聚物的合成及其表征[J].高分子学报,2007(11):1069-1073.

ZHANG Wenxiong, LI Mingmin, JING Qi, LIU Jingbing. SYNTHESIS AND CHARACTERIZATION OF THERMOTROPIC POLYAMIDE LIQUID CRYSTALLINE BLOCK COPOLYMERS. [J]. Acta Polymerica Sinica (11):1069-1073(2007)
[1]张文熊,李名敏,井琦,刘晶冰.一种热致液晶聚酰胺嵌段共聚物的合成及其表征[J].高分子学报,2007(11):1069-1073. DOI：

ZHANG Wenxiong, LI Mingmin, JING Qi, LIU Jingbing. SYNTHESIS AND CHARACTERIZATION OF THERMOTROPIC POLYAMIDE LIQUID CRYSTALLINE BLOCK COPOLYMERS. [J]. Acta Polymerica Sinica (11):1069-1073(2007) DOI：

摘要

以聚三乙二醇双（4-羧苯）醚（PEG3）、邻联甲苯胺和己内酰胺为单体

通过共缩聚的方法合成了一种嵌段共聚物

聚酰胺-酰胺.采用红外光谱仪、核磁、偏光显微镜、差热分析和广角X光衍射对其结构及性能进行了表征.研究表明

这种嵌段共聚物具有液晶性;与缩聚得到的热致聚酰胺液晶（TLCP）相比

共缩聚得到的热致聚酰胺液晶（TLCP-N6）热力学性能发生了改变

在很宽的温度范围内呈向列相

并且在一定条件下可形成固化诱导条带织构和剪切条带织构.

Abstract

A specific polyamide-amide block copolymer with monomers of triethyleneglycol bis(4-carboxypheny)ether(PEG3)

4’-diamino-3

3’-dimethylbiphenyl and ε-caprolactam was synthesized via condensation copolymerization.FT-IR

1H-NMR

POM

DSC and WAXD analyses of samples elicit that this new type of block copolymer can demonstrate liquid crystalline characteristics.By contrast to thermotropic homopolyamide liquid crystalline(TLCP)

the thermal dynamic properties of the thermotropic liquid crystalline copolyamide containing N6(TLCP-N6)were modified.This block copolymer can show nematic phase in a wide temperature range

and is able to form morphologic textures of solidification-induced band and shear stripes under certain conditions.

关键词

热致聚酰胺液晶向列相固化诱导条带

Keywords

Thermotropic polyamide liquid crystallineNematic phaseSolidification-induced band texture

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