SYNTHESIS AND CHARACTERIZATION OF LIQUID CRYSTALLINE POLYESTER AND EPOXY BLOCK COPOLYMER

TAN Songting; WEI Chun; WANG Yong; WANG Xiayu

doi:null

您当前的位置：

首页 >

文章列表页 >

SYNTHESIS AND CHARACTERIZATION OF LIQUID CRYSTALLINE POLYESTER AND EPOXY BLOCK COPOLYMER

Research Bulletin | 更新时间：2021-03-19

- SYNTHESIS AND CHARACTERIZATION OF LIQUID CRYSTALLINE POLYESTER AND EPOXY BLOCK COPOLYMER
- Acta Polymerica Sinica Issue 2, Pages: 249-252(2002)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：20 April 2002，
扫描看全文
TAN Songting, WEI Chun, WANG Yong, WANG Xiayu. SYNTHESIS AND CHARACTERIZATION OF LIQUID CRYSTALLINE POLYESTER AND EPOXY BLOCK COPOLYMER. [J]. Acta Polymerica Sinica (2):249-252(2002)
DOI：

TAN Songting, WEI Chun, WANG Yong, WANG Xiayu. SYNTHESIS AND CHARACTERIZATION OF LIQUID CRYSTALLINE POLYESTER AND EPOXY BLOCK COPOLYMER. [J]. Acta Polymerica Sinica (2):249-252(2002) DOI：

摘要

近年来

人们利用高分子液晶作为热固性环氧树脂的改性剂

不仅可以提高环氧树脂的韧性和强度

而且可以改善其热性能

为制备高性能的环氧树脂提供了一条新的途径[1

2 ] .目前报道所使用的液晶聚合物大多为液晶聚酯[3 ] 或液晶性聚氨酯[4]

这些液晶聚合物与环氧树脂由于存在相容性不好的问题

给其实际应用带来了困难 .为了改善二者的相容性

本文采用溶液法合成了末端带有反应活性基团的聚酯型液晶聚合物

将它再与双酚Ａ环?...

Abstract

A liquid crystalline block copolymer (BCPE) was synthesized from bis-phenol-A epoxy oligomer and liquid crystalline polyester (PBHT) which was prepared from polyhexamethylene-bis-(4-oxybenzoates) and terephthaloyl dichloride by solution polymerization．The intrinsic viscosity (ηinh) of the polymers was determined using an ubbelohde viscometer in phenyl hydroxide／1

2-tetrachloroethane mix solvent (1:1) at 30℃

and the results showed that the ηinh values of PBHT and BCPE are 0.16 dL／g and 0.46 dL／g respectively．FTIR analysis identified the reaction between bis-phenol-A epoxy oligomer and PBHT．The crystalline properties of polymers were investigated with DSC and WAXD

and the results found that the crystallinity of BCPE is inferior to that of PBHT due to addition of amorphous epoxy．Thermotropic liquid crystalline nematie phase textures of polymers were observed under a polarizing microscope with hot stage．

关键词

液晶聚酯环氧嵌段共聚物

Keywords

references

更多指标>

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

SYNTHESIS AND CHARACTERIZATION OF MACRMOLECULAR BRUSH WITH POLYIMIDE AS BACKBONE

EFFECT OF SHEAR FLOW ON THE FORMATION OF MULTICOMPARTMENT WORMLIKE MICELLES OF PS-b-P2VP-b-PEO TRIBLOCK COPOLYMER

APPLICATION OF OXYANIONINITIATED POLYMERIZATION IN SYNTHESIS OF HYPERBRANCHED POLYMERS

NMR STUDIES ON THE SELF-ASSEMBLE BEHAVIOR OF POLY(ETHYLENE GLYCOL) METHYL ETHER-b-POLY(L-ALANINE) DIBLOCK COPOLYMER

SYNTHESIS AND PROPERTIES OF WATERBORNE POLYURETHANES MODIFIED BY EPOXY RESIN

Related Author

No data

Related Institution

Guangzhou Institute of Chemistry, Chinese Academy of Sciences

Postal code：100190
Tel：010-62588927 Email：gfzxb@iccas.ac.cn
Technical support is provided by Beijing Founder electronics co., LTD 京ICP备05002797号-8 京公网安备11010802024621
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.

⁰