文献类型：期刊文献

中文题名：EAA-g-MPEG的合成及其对HDPE的亲水改性

英文题名：Synthesis of EAA-g-MPEG and the Hydrophilic Modification for HDPE

作者：朱贤平[1];林珩[1];郑柏存[1]

机构：[1]华东理工大学泰山体育新材料研发中心,上海200237

年份：2016

卷号：29

期号：3

起止页码：352

中文期刊名：功能高分子学报

外文期刊名：Journal of Functional Polymers

收录：CSTPCD;;北大核心:【北大核心2014】；CSCD:【CSCD2015_2016】；

语种：中文

中文关键词：乙烯-丙烯酸;聚乙二醇单甲醚;接枝;亲水改性;高密度聚乙烯

外文关键词：EAA; MPEG; graft; hydrophilic modification; HDPE

摘要：以乙烯-丙烯酸(EAA)共聚物及聚乙二醇单甲醚(MPEG)为主要原料,通过酯化反应制备了一系列接枝共聚物EAA-g-MPEG,并将其与高密度聚乙烯(HDPE)共混制得改性薄膜。研究了反应条件对接枝反应的影响,通过FT-IR、TG、DSC等方法研究了接枝产物的结构及其热性能。结果表明,随着侧链MPEG分子量的提高,产物接枝率逐渐下降;随接枝率的提高及侧链长度的增长,产物热稳定性下降;随接枝率的提高,产物的结晶熔融峰向高温方向移动,结晶性变好;EAA-g-MPEG可有效改善HDPE的表面亲水性能,当其质量分数为10%时,可使改性HDPE薄膜的水接触角由105°降至59°。
With the esterification reaction of ethylene acrylic acid （EAA） copolymer and methoxy polyethylene glycol （MPEG）,a series of EAA-g-MPEG copolymers were prepared.Then,EAA-g-MPEG copolymers were blended with high density polyethylene（HDPE） to prepare modified films.The effects of different reaction conditions on the grafting reaction were studied.The structure and thermal properties of the grafted copolymers were characterized by FT-IR,TG and DSC.Results showed that the grafting yield decreased gradually with the increase of molecular weight of MPEG.The thermal stability of the grafted products got worse with the increase of grafting ratio and side chain length.The grafting of MPEG was beneficial to the crystallization properties of the grafted products,and the crystal melting peak of the grafted products drifted to the direction of higher temperature.EAA-g-MPEG could effectively improve the surface hydrophilicity of the HDPE films.The water contact angle of the modified HDPE films could be decreased from 105° to 59° with only 10% mass fraction of modifiers.