Hydrophilicity improvement of polyethersulfone powders by grafting acrylic acid with γ−ray simultaneous irradiation method

DENG Bo; HOU Zhengchi; ZHANG Fengying; XIE Leidong; LI Jing; YANG Haijun

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Hydrophilicity improvement of polyethersulfone powders by grafting acrylic acid with γ−ray simultaneous irradiation method

更新时间：2023-03-30

- Hydrophilicity improvement of polyethersulfone powders by grafting acrylic acid with γ−ray simultaneous irradiation method
- Journal of Radiation Research and Radiation Processing Vol. 23, Issue 6, Pages: 337-341(2005)
- 作者机构：
  
  1.中国科学院上海应用物理研究所　上海　201800
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DENG Bo, HOU Zhengchi, ZHANG Fengying, et al. Hydrophilicity improvement of polyethersulfone powders by grafting acrylic acid with γ−ray simultaneous irradiation method. [J]. Journal of Radiation Research and Radiation Processing 23(6):337-341(2005)
DOI：

DENG Bo, HOU Zhengchi, ZHANG Fengying, et al. Hydrophilicity improvement of polyethersulfone powders by grafting acrylic acid with γ−ray simultaneous irradiation method. [J]. Journal of Radiation Research and Radiation Processing 23(6):337-341(2005) DOI：

摘要

利用γ射线共照射技术在聚醚砜（Polyethersulfone，PES）粉体上接枝了丙烯酸。研究了丙烯酸单体体积分数、接枝溶液pH值、吸收剂量、阻聚剂（Cu,2+,）浓度等对接枝率的影响规律。通过与称重法相结合，得到了利用红外光谱对接枝率进行定量分析的工作曲线。研究结果表明，当吸收剂量为25kGy、单体体积分数为30%、阻聚剂用量为0.004mol/L时，可以获得最高的接枝率。接枝溶液中盐酸的添加有利于提高接枝率。提高接枝率有助于改善PES的亲水性。

Abstract

Acrylic acid was grafted to Polyethersulfone (PES) powders by liquid−phase simultaneous irradiation. Effects of grafting conditions, such as absorbed dose, Volume fraction of monomer, inhibitor (Cu,2+,) concentration, and pH of the grafting solution on degree of the grafting were investigated. Combined with gravimetric analysis, a working curve of grafting degree through FT−IR quantitative analysis was obtained. The highest grafting degree was achieved at dose of 25kGy, Volume fraction of monomer of 30% and inhibitor concentration of 0.004 mol/L. Greater degrees of the grafting could be obtained by adding increasing amount of hydrochloric acid to the system. Hydrophilicity of the grafted PES powders increased with higher degrees of the grafting.

关键词

辐射接枝亲水性聚醚砜丙烯酸阻聚剂

Keywords

Radiation graftingHydrophilicityPolyethersulfone (PES)Acrylic acidInhibitor

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