STUDY ON LYOTROPIC LIQUID CRYSTAL OF CYANOETHYL CELLULOSE

HUANG Yong; LI Ban-tong

doi:null

您当前的位置：

首页 >

文章列表页 >

STUDY ON LYOTROPIC LIQUID CRYSTAL OF CYANOETHYL CELLULOSE

Research Article | 更新时间：2021-03-19

- STUDY ON LYOTROPIC LIQUID CRYSTAL OF CYANOETHYL CELLULOSE
- Acta Polymerica Sinica Issue 3, Pages: 161-165(1988)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：20 June 1988，
扫描看全文
HUANG Yong, LI Ban-tong. STUDY ON LYOTROPIC LIQUID CRYSTAL OF CYANOETHYL CELLULOSE. [J]. Acta Polymerica Sinica (3):161-165(1988)
DOI：

HUANG Yong, LI Ban-tong. STUDY ON LYOTROPIC LIQUID CRYSTAL OF CYANOETHYL CELLULOSE. [J]. Acta Polymerica Sinica (3):161-165(1988) DOI：

摘要

氰乙基纤维素在二甲基甲酰胺、二甲基乙酰胺、二甲基亚砜、乙腈以及丙酮等溶剂中可以形成溶致性液晶。随浓度增加

溶液从各向同性状态经两相共存态转变成为完全的液晶态。升高温度到T_c

液晶相消失;降低温度到T′c

液晶相再生成。Tc总大于T′c。而且

浓度越高

过冷温度△T=Tc—T′c越小。在各向同性

两相共存或完全的液晶状态

溶液平均折射率和消光度均与浓度呈线性关系。但在两相间相互转变时

即在C1*和C2*处

n-C和 A-C 曲线上出现转折点。高聚物与溶剂的相互作用参数X12愈小

临界浓度C1*愈小。把描述大分子链柔顺性的参数f与X12联系起来

可用 1956年 Flory的理论定性地解释溶剂对高聚物溶致性液晶形成的影响。

Abstract

Cyanoethyl cellulose can form lyotropic liquid crystal in some organic solvents above a certain concentration C1*. When phase transition occurs

the optical properties of the solutions very. The existence of the liquid crystalline phase depends on the concentration and temperature of the solutions. The effect of solvent on the formation of lyotropic liquid crystal for the cyanoethyl cellulose is that the critical concentration C*1 decreases with decreasing the polymersolvent interaction parameter x12.

关键词

氰乙基纤维素溶致性液晶双折射纹理折射率消光度临界浓度临界温度

Keywords

references

更多指标>

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

STUDIES ON LYOTROPIC LIQUID CRYSTALLINE SOLUTIONS OF CYANOETHYL CELLULOSE/DIMETHYL ACETAMIDE

STUDY ON THE REFRACTIVE INDEX FOR LYOTROPIC LIQUID CRYSTAL OF CYANOETHYL CELLULOSE

STUDIES ON CRITICAL BEHAVIOR OF LIQUIDCRYSTALLINE BUTYRYL CHITOSAN

STUDIES ON CHITIN-BASED LIQUID CRYSTALLINE POLYMERS ——STUDIES OF CRITICAL CONCENTRATIONS OF N-PHTHALOYL CHITOSAN FOR THE FORMATION OF LYOTROPIC CHOLESTERIC PHASE USING CIRCULAR DICHROISM SPECTROSCOPY

STUDIES ON CHITIN-BASED LIQUID CRYSTALLINE POLYMERS Ⅵ.INFLUENCE OF THE DEGREE OF SUBSTITUTION OF AMIC ACID ON THE LIQUID CRYSTALLINE BEHAVIOR OF PHTHALOYL CHITOSAN

Related Author

No data

Related Institution

No data

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