Effect of Molecular Weight of PEO on Solution Crystallization of POM/PEO Blend

Hui-zhi WU; Shing-bin BAI; Qi WANG

您当前的位置：

首页 >

文章列表页 >

Effect of Molecular Weight of PEO on Solution Crystallization of POM/PEO Blend

更新时间：2022-09-18

- Effect of Molecular Weight of PEO on Solution Crystallization of POM/PEO Blend
- Polymer Bulletin Vol. 25, Issue 7, Pages: 84-90(2012)
- 作者机构：
  
  高分子材料工程国家重点实验室，四川大学高分子研究所，成都　610065
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2012-07，
  
  Received：26 October 2011，
  
  Revised：12 January 2012，
扫描看全文
Hui-zhi WU, Shing-bin BAI, Qi WANG. Effect of Molecular Weight of PEO on Solution Crystallization of POM/PEO Blend. [J]. Polymer Bulletin 25(7):84-90(2012)
DOI：

Hui-zhi WU, Shing-bin BAI, Qi WANG. Effect of Molecular Weight of PEO on Solution Crystallization of POM/PEO Blend. [J]. Polymer Bulletin 25(7):84-90(2012) DOI：

摘要

以六氟异丙醇(HFIP)为聚甲醛(POM)与聚氧化乙烯(PEO)的共溶剂

通过溶液结晶研究了PEO分子量对POM/ PEO 50/50晶/晶共混物结晶行为及结晶形态的影响。结果表明

PEO分子量越小

POM与PEO在结晶过程中相互干扰越大。当PEO分子量为4×10

时

共混物中POM形成部分不完善晶体

出现明显的熔融双峰。SEM结果表明:含不同分子量PEO的共混晶体均无明显相分离

且低分子量PEO的共混物更易形成规整球晶

认为通过溶液结晶，POM/PEO50/50共混物中POM与PEO形成了晶体相互穿插的结晶结构。

Abstract

Solution crystallization of polyoxymethylene(POM)/poly(ethylene oxide)(PEO) (50/50) blend with different molecular weight(

http://notExist.jpg

of PEO

using hexafluoroisopropanol (HFIP) as common solvent

was studied by differential scanning calorimeter(DSC)

scanning electron spectroscopy(SEM) and infrared spectra (IR).It indicated that the lower

http://notExist.jpg

of PEO

the stronger interruption between POM and PEO in the crystallization. When

http://notExist.jpg

of PEO was 4×10

POM formed partial imperfect crystals

thus showing obvious double melting peaks in the blend. SEM results showed that no obvious phase separation occurred in the POM/PEO blend with different

http://notExist.jpg

of PEO and it was easier for the blend with lower

http://notExist.jpg

of PEO to form regular spherulites. It was expected that the interpenetrated structure was formed in the POM/PEO 50/50 blend through solution crystallization.

关键词

聚甲醛聚氧化乙烯溶液结晶

Keywords

PolyoxymethylenePoly(ethylene oxide)Solution crystallization

references

更多指标>

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Melting Temperature Measurement of Polyoxymethylene and Poly(ethylene oxide) under High Pressure

Filling Behavior of Polyoxymethylene/Poly(Ethylene Oxide)/SiO₂ Ternary Composite System under Microinjection Molding Conditions

Influence of Blending Elastomers on the Crystallization Behavior and Mechanical Properties of Polyoxymethylene

Research Progress in Modified Polyoxymethylene

Advances in the Synthesis of Polyoxymethylene

Related Author

No data

Related Institution

Institute of High Temperature High Pressure Physics, Southwest Jiaotong University

State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University

Analytical and Testing Center, Sichuan University of Science and Engineering

College of Polymer Science and Engineering,State Key Laboratory of Polymer Materials Engineering, Sichuan University

Performance Material Center,National Institute of Clean-and-Iow-carbon Energy

⁰