SYNTHESIS OF aPs-b-P(S-co-E)-b-PE BLOCK COPOLYMERSCATALYZED WITH HALF-TITANOCENE/Zn/BDGE/MAO CATALYST SYSTEM

MA Lifu; HUANG Qigu; SONG Huaihe; YANG Wantai

doi:10.3724/SP.J.1105.2009.00689

您当前的位置：

首页 >

文章列表页 >

SYNTHESIS OF aPs-b-P(S-co-E)-b-PE BLOCK COPOLYMERSCATALYZED WITH HALF-TITANOCENE/Zn/BDGE/MAO CATALYST SYSTEM

Research Bulletin | 更新时间：2021-03-19

- SYNTHESIS OF aPs-b-P(S-co-E)-b-PE BLOCK COPOLYMERSCATALYZED WITH HALF-TITANOCENE/Zn/BDGE/MAO CATALYST SYSTEM
- Acta Polymerica Sinica Issue 7, Pages: 689-694(2009)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：10.3724/SP.J.1105.2009.00689
  CLC：
- Published：20 July 2009，
扫描看全文
MA Lifu, HUANG Qigu, SONG Huaihe, YANG Wantai. SYNTHESIS OF aPs-b-P(S-co-E)-b-PE BLOCK COPOLYMERSCATALYZED WITH HALF-TITANOCENE/Zn/BDGE/MAO CATALYST SYSTEM. [J]. Acta Polymerica Sinica (7):689-694(2009)
DOI：

MA Lifu, HUANG Qigu, SONG Huaihe, YANG Wantai. SYNTHESIS OF aPs-b-P(S-co-E)-b-PE BLOCK COPOLYMERSCATALYZED WITH HALF-TITANOCENE/Zn/BDGE/MAO CATALYST SYSTEM. [J]. Acta Polymerica Sinica (7):689-694(2009) DOI： 10.3724/SP.J.1105.2009.00689.

摘要

采用单茂钛化合物CpTiCl3

有机环氧化合物1

4-丁二醇二缩水甘油基醚(BDGE)

金属锌(Zn)及甲基铝氧烷(MAO)为催化体系

通过自由基聚合和配位聚合机理合成无规聚苯乙烯-b-聚(苯乙烯-co-乙烯)-b-聚乙烯(aPS-b-P(S-co-E)-b-PE). 探讨了温度、时间、乙烯压力及Al /Ti摩尔比对共聚合的影响.所得嵌段共聚物采用DSC

WAXD

GPC 和 13C-NMR等手段进行了表征.结果表明该共聚物是苯乙烯/乙烯嵌段共聚物

聚苯乙烯链段是无规的

聚乙烯链段具有结晶性.

Abstract

By one-pot technique the copolymerization of styrene with ethylene promoted by a cyclopentadienyl titanium trichloride (CpTiCl3)/1

4-butanediol di glyci dyl ether (BDGE)/Zn catalytic system to yield aPs-b-P(S-co-E)- b-PE block copolym ers was investigatedvia sequential monomer addition strategy in the presenc e of methylaluminoxane (MAO) as cocatalyst for the coordination polymerization stage. The effect of temperature

time

ethylene pressure and the ratio of Al/Ti in mol on the polymerization performance was discussed in detail.Basically

aPs-b-P(S-co-E)-b-PE block copolymers was obtained

togethe r with atactic polyst yrene through the approach

which was determined by solvent extraction.The CHCl3-soluble product was determined by GPC

DSC

WAXD and 13C-NMR.The molecular weig ht distribution (MWD) of the copolymer varied slightly at the range from 1.71 t o 2.11The DSC result showed that the copolymer featured one glass transition te mperature (for example Tg= 86℃) attributed to the Tg of aPs domains an d one melting point (for example Tm= 114℃) attributed to the Tm of PE domains.The blocky microstructure of the copolymer was further confi rmed by WAXD and 13C-NMR.These results indicated that the copolymer was consisted of amorphous aPs segments

P(S-co-E) segments and crystalline PE segmen ts.

关键词

茂金属化合物活性自由基聚合配位聚合苯乙烯乙烯嵌段共聚物

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 COMB-LIKE HYDROXYL FUNCTIONALIZED ATACTIC POLYSTYRENE INITIATED BY (n-BuCp)2TiCl2/Sn/Is CATALYTIC SYSTEM

LIVING FREE-RADICAL POLYMERIZATION IN THE PRESENCE OF DITHIOESTERS

EFFECT OF MONOMER POLYMERIZATION SEQUENCE ON THE SYNTHESIS OF POLY(METHYL METHACRYLATE-b-STYRENE) BY ATOM TRANSFER RADICAL POLYMERIZATION

SYNTHESIS AND CHARACTERIZATION OF BLOCK COPOLYMERS OF STYRENE AND 2 VINYLPYRIDINE

SYNTHESIS, STRUCTURE AND PROPERTIES OF STYRENE-ETHYLENE COPOLYMERS

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