PREPARATION AND SURFACE PROPERTIES OF ACRYLATE COPOLYMERLATEX CONTAINING FLUORINE

ZHAO Xingshun; DING Xiaobin; ZHANG Junhua; ZHENG Zhaohui; PAN Yi; ZHU Zhu; PENG Yuxing

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PREPARATION AND SURFACE PROPERTIES OF ACRYLATE COPOLYMERLATEX CONTAINING FLUORINE

Research Article | 更新时间：2021-03-19

- PREPARATION AND SURFACE PROPERTIES OF ACRYLATE COPOLYMERLATEX CONTAINING FLUORINE
- Acta Polymerica Sinica Issue 2, Pages: 196-200(2004)
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- Published：20 April 2004，
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ZHAO Xingshun, DING Xiaobin, ZHANG Junhua, ZHENG Zhaohui, PAN Yi, ZHU Zhu, PENG Yuxing. PREPARATION AND SURFACE PROPERTIES OF ACRYLATE COPOLYMERLATEX CONTAINING FLUORINE. [J]. Acta Polymerica Sinica (2):196-200(2004)
DOI：

ZHAO Xingshun, DING Xiaobin, ZHANG Junhua, ZHENG Zhaohui, PAN Yi, ZHU Zhu, PENG Yuxing. PREPARATION AND SURFACE PROPERTIES OF ACRYLATE COPOLYMERLATEX CONTAINING FLUORINE. [J]. Acta Polymerica Sinica (2):196-200(2004) DOI：

摘要

以十二烷基硫酸钠 (SDS)和OP-10混合乳化剂

制备了甲基丙烯酸全氟辛基乙酯 (FMA8)-甲基丙烯酸丁酯 (BMA)-甲基丙烯酸 (MAA)共聚乳液.通过DSC、FT IR、1H-NMR对共聚物的结构、组成进行了表征研究 .采用JZHY 180界面张力仪研究了共聚乳液膜表面的性质

结果表明

随着共聚物中全氟单体含量的增加

共聚物膜的表面能显著降低

当全氟单体的含量达到25wt %时

其表面能降低到 19.74mJ/m2.X-ray光电子能谱(XPS)对共聚物表面原子组成的分析结果表明

共聚物表面氟的含量远高于其平均含量

证明了含氟基团的趋表现象.经退火处理

共聚物膜表面的氟含量增加

表面自由能降低.

Abstract

Copolymer latex containing perfluorooctylethyl methacrylate was prepared by emulsion polymerization using sodium dodecyl sulfate SDS and OP-10 as emulsifier The copolymer was characterized by using DSC、FT-IR and 1H-NMR techniques Surface properties of the copolymer film were measured by contact angle measurements (JZHY-180) The results show that the surface free energies of copolymer films decrease drastically with increasing the concentration of FMA8．and can reach 19.74 mJ/m2 when the concentration of FMA8 used in copolymerization increases to 25 wt％．X-ray photoelectron spectroscopy (XPS) was used to investigate the atomic compositions of the surface of eopolymers．It was found that the content of fluorine on the surface of copolymers is higher than the value calculated according to the feeds．Our investigation verified that groups containing fluorine tend to enrich at the copolymer-air interface．Through annealing treatment

the content of fluorine on the surface nf copolymers was found to increase

which resulted in fudher decrease of surface free energies．

关键词

甲基丙烯酸全氟烷基乙基酯乳液共聚表面自由能氟丙烯酸酯

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Technical Institute of Physics and Chemistry, Chinese Academy of Sciences

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