SYNTHESIS AND CHARACTERIZATION OF A MACROMOLECULAR SURFACE MODIFIER FOR POLYPROPYLENE

CHEN Hanjia; ZHU Yafei; ZHANG Yi; XU Jiarui

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SYNTHESIS AND CHARACTERIZATION OF A MACROMOLECULAR SURFACE MODIFIER FOR POLYPROPYLENE

Research Article | 更新时间：2021-03-19

- SYNTHESIS AND CHARACTERIZATION OF A MACROMOLECULAR SURFACE MODIFIER FOR POLYPROPYLENE
- Acta Polymerica Sinica Issue 2, Pages: 203-208(2007)
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- Published：20 February 2007，
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CHEN Hanjia, ZHU Yafei, ZHANG Yi, XU Jiarui. SYNTHESIS AND CHARACTERIZATION OF A MACROMOLECULAR SURFACE MODIFIER FOR POLYPROPYLENE. [J]. Acta Polymerica Sinica (2):203-208(2007)
DOI：

CHEN Hanjia, ZHU Yafei, ZHANG Yi, XU Jiarui. SYNTHESIS AND CHARACTERIZATION OF A MACROMOLECULAR SURFACE MODIFIER FOR POLYPROPYLENE. [J]. Acta Polymerica Sinica (2):203-208(2007) DOI：

摘要

以马来酸酐为桥联剂

通过其与单端羟基聚乙二醇的反应

合成了大分子表面改性剂聚丙烯-聚乙二醇接枝共聚物

探索了反应条件对接枝反应的影响

用IR、NMR、TGA、DSC对接枝物的结构及性能进行研究

并通过共混研究了接枝物对聚丙烯的表面改性效果.结果表明

提高马来酸酐接枝聚丙烯或聚乙二醇的分子量

会阻碍接枝反应的进行

接枝率明显下降；接枝聚乙二醇降低了接枝物的结晶能力；聚丙烯-聚乙二醇接枝共聚物的热稳定性随着聚乙二醇的含量增加及侧链聚乙二醇长度的增加略有下降；聚丙烯-聚乙二醇接枝共聚物组分在共混物中具有明显的向外择优迁移特性

可以作为聚丙烯的添加型表面改性剂使用.

Abstract

A novel macromolecular surface modifier

a polypropylene-grafted-poly(ethylene glycol) copolymer

was synthesized by coupling of polypropylene containing maleic anhydride with monohydroxyl-terminated poly(ethylene glycol).The effects of reaction conditions on the graft reactions were studied.The copolymers were characterized by IR

1H-NMR

TG and DSC.The results indicated that the graft reactions were hindered by increasing the molecular weight of PP or PEG.The graft copolymer had a lower crystallization capacity as compared with pure PP.The thermal stability of PP-g-PEG decreased with increasing the content of PEG or the molecular weight of PEG.The copolymers were used to blend with polypropylene to modify the surface hydrophilicity of the products.The results of ATR-FTIR showed that PP-g-PEG could diffuse preferably onto the surface of the blends and be suitable as an effectual macromolecular surface modifier for PP.

关键词

表面改性聚丙烯接枝共聚物全反射红外光谱

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Related Institution

Technical Institute of Physics and Chemistry, Chinese Academy of Sciences

Zhong Ke San Huan Research

Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology

1,2),GAO Xueqin~2,YUAN Yi~2,SHEN Kaizhi~2

四川大学高分子科学与工程学院高分子材料工程国家重点实验室

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