COPOLYMERIZATION OF FLUOROCARBON-MODIFIED POLY(ACRYLIC ACID) IN SUPERCRITICAL CARBON DIOXIDE

HE Tao; HU Hongqi; CHEN Mingcai; LU Shehui; LIU Hongbo

doi:null

您当前的位置：

首页 >

文章列表页 >

COPOLYMERIZATION OF FLUOROCARBON-MODIFIED POLY(ACRYLIC ACID) IN SUPERCRITICAL CARBON DIOXIDE

Research Article | 更新时间：2021-03-19

- COPOLYMERIZATION OF FLUOROCARBON-MODIFIED POLY(ACRYLIC ACID) IN SUPERCRITICAL CARBON DIOXIDE
- Acta Polymerica Sinica Issue 2, Pages: 228-231(2004)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：20 April 2004，
扫描看全文
HE Tao, HU Hongqi, CHEN Mingcai, LU Shehui, LIU Hongbo. COPOLYMERIZATION OF FLUOROCARBON-MODIFIED POLY(ACRYLIC ACID) IN SUPERCRITICAL CARBON DIOXIDE. [J]. Acta Polymerica Sinica (2):228-231(2004)
DOI：

HE Tao, HU Hongqi, CHEN Mingcai, LU Shehui, LIU Hongbo. COPOLYMERIZATION OF FLUOROCARBON-MODIFIED POLY(ACRYLIC ACID) IN SUPERCRITICAL CARBON DIOXIDE. [J]. Acta Polymerica Sinica (2):228-231(2004) DOI：

摘要

研究了在超临界二氧化碳条件下

丙烯酸 1

1 二氢全氟辛酯 (FOA)对聚丙烯酸疏水改性的共聚反应 .发现与通常聚合方法相比含氟丙烯酸酯的产率得到提高 ;反应时间从 2 4h缩短到 4h ;所得产物的后处理也更容易 .同时发现温度对反应有影响

含氟酯单体在低温 (T 6 0 0℃ )时丙烯酸活性提高较大 .而共聚物水溶液粘度随pH值变化先上升后下降

在pH =5 0出现峰值

显示其中有分子间缔合存在 .与改性聚丙烯酰胺不同

改性聚丙烯酸水溶液粘度随FOA含量的增加而单调上升

也证明了分子间缔合的存在

Abstract

Copolymer of 1

1-dihydroperfluorooetyl acrylate (FOA) and acrylic acid (AA) was obtained in supercritical CO2(SC-CO2) Compared with the traditional methods

the yield ratio of FOA using SC-CO2 is increased at lower temperature

the reaction time is shortened from 24 h to only 4 h

and the products are easier to be treated．At the same time it was found that temperature played an important role in these reactions．The FOA monomer is more active than the AA monomer in low temperature(TT> 60.0℃) the activity of AA monomer improved greatly The viscosity of aqueous solutions of the copolylmers rises up dramatically with the increase of fluorocarbon content

and the viscosity of the eopolymets versus pH values shows a peak

both of results evidenced the hydmphobic association of macmmoleeules in solutions．

关键词

超临界CO2疏水性缔合丙烯酸共聚

Keywords

references

更多指标>

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

A FACILE METHOD FOR PREPARING POLYMER GRADIENT SURFACES WITH A PRINTED GRADATION PHOTOMASK

COPOLYMERIZATION OF CARBON DISULFIDE AND CYCLOHEXENE OXIDE WITH A DOUBLE-METAL CYANIDE COMPLEX CATALYST

EFFECTS OF PRE-IRRADIATION GRAFTING OF ACRYLIC ACID AND SODIUM STYRENE SULFONATE ON THE PROPERTIES OF FEP MEMBRANES

CATALYTIC MECHANISM OF TERNARY RARE-EARTHMATAL COORDINATION CATALYSTS IN THE COPOLYMERIZATION OF CARBON DIOXIDE AND EPOXIDE

SYNTHESIS,CHARACTERIZATION,AND GAS PERMEATION PROPERTIES OF COPOLYIMIDES

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