EFFECT OF ITACONIC ACID ON THE STRUCTURE AND PROPERTIES OF PAN PRECURSOR

ZHANG Wangxi

doi:null

您当前的位置：

首页 >

文章列表页 >

EFFECT OF ITACONIC ACID ON THE STRUCTURE AND PROPERTIES OF PAN PRECURSOR

Research Article | 更新时间：2021-03-19

- EFFECT OF ITACONIC ACID ON THE STRUCTURE AND PROPERTIES OF PAN PRECURSOR
- Acta Polymerica Sinica Issue 3, Pages: 287-291(2000)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：20 June 2000，
扫描看全文
ZHANG Wangxi. EFFECT OF ITACONIC ACID ON THE STRUCTURE AND PROPERTIES OF PAN PRECURSOR. [J]. Acta Polymerica Sinica (3):287-291(2000)
DOI：

ZHANG Wangxi. EFFECT OF ITACONIC ACID ON THE STRUCTURE AND PROPERTIES OF PAN PRECURSOR. [J]. Acta Polymerica Sinica (3):287-291(2000) DOI：

摘要

控制单体配比

采用丙烯腈 (AN)与衣康酸 (IA)自由基溶液共聚

以偶氮二异丁腈为引发剂在溶剂二甲基亚砜中合成了聚丙烯腈原丝纺丝溶液

并纺制了碳纤维前驱体聚丙烯腈原丝 .通过元素分析、IR、DSC、13C NMR等手段

讨论了共聚单体IA对共聚反应及聚丙烯腈原丝结构和性能的影响 .共聚反应时

共聚单体IA的加入量控制在AN/IA =98/2 (W/W )较合适 .利用IR谱

可定量分析IA在共聚中的摩尔分数 .经13C NMR分析

随着共聚单体IR在共聚物中的摩尔分数的增加

共聚物的全同规整度增加

达到一定值后又呈下降趋势 .共聚单体IA能在较低温度时引发聚丙烯腈原丝的氧化、环化放热反应

且能减缓放热效应 .

Abstract

Free-radical solution copolymerization of itaconic acid (IA) and acrylonitrile (AN) was carried out in DMSO at 60℃ using azodiisobutyronitrile (AIBN) as initiator.The resulting polymerization solution was spun to form PAN precursors of carbon fibers

which were then characterized by elemental analysis

13C-NMR

DSC and so on.The effect of the itaconic acid content in copolymers on the structure and properties of PAN precursors was investigated.The comonmer content in the copolymer was analyzed quantitatively by IR.The adequate feed ratio of AN/IA was found to be 98/2(W/W).Copolymers having about 2 mol% of comonomer appeared to have higher isotacticity as calculated from methine group signals in the 13C-NMR spectra.Furthermore

in the case of P(AN-co-IA)copolymers

the cyclization may start at a lower temperature and propagate at a slower rate.

关键词

聚丙烯腈原丝衣康酸丙烯腈结构和性能碳纤维

Keywords

references

更多指标>

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

SOLUTION COPOLYMERIZATION OF ACRYLONITRILE WITH 1-ALLYL3-METHYL-IMIDAZOLIUM

EFFECT OF NiSO4 ON THE STRUCTURE AND PROPERTIES OF PAN PRECURSORS AND RESULTANT CARBON FIBRES

SOLUTION POLYMERIZ ATI 0N OF ACRYLON ITRILE WITH ITACONIC ACID

Properties of Polymer Composites Reinforced by Self-welded Carbon Fiber Networks

STUDY ON SYNTHESIS AND PROPERTIES OF POLY(ARYL ETHER KETONE IMIDE) HAVING BIS(o-METHYL) PENDENT GROUPS

Related Author

No data

Related Institution

华东理工大学材料科学与工程学院上海市先进聚合物重点实验室

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