| 利用等离子体技术研究聚苯乙烯表面的接枝聚合反应 |
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| 引用本文： | 万海燕,魏彦林,赵宝明,陈亚芍.利用等离子体技术研究聚苯乙烯表面的接枝聚合反应[J].高等学校化学学报,2009,30(7):1365-1370. |
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| 作者姓名： | 万海燕 魏彦林 赵宝明 陈亚芍 |
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| 作者单位： | 陕西师范大学应用表面与胶体化学教育部重点实验室,化学与材料科学学院,西安,710062 |
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| 摘 要： | 用O2等离子体对聚苯乙烯(PS)进行预处理, 再用Ar等离子体引发N-乙烯基吡咯烷酮(NVP)在其表面接枝聚合. 通过接触角(CA)及表面自由能(SE)分析, 探讨了O2等离子体预处理条件对PS表面自由能的影响, 确定了预处理的最佳条件. 通过衰减全反射红外光谱(ATR-FTIR)、X射线光电子能谱(XPS)和动态接触角(DCA)分析, 比较了O2等离子体预处理前后和接枝聚合前后PS的表面组成及表面性能, 实验结果表明, 利用等离子体技术能成功地将NVP接枝聚合于PS表面, 接枝聚合后的PS表面由于极性高分子链和粗糙度的增加, 亲水性增强, 水滴易在其表面铺展. 由于接枝聚合后PS表面的高分子链在水中发生重构, 使后退角降低幅度较大, 接触角滞后现象明显.
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| 关 键 词： | 聚苯乙烯 N-乙烯基吡咯烷酮 等离子体 表面自由能 接触角滞后 |
| 收稿时间： | 2008-10-27 |
Studies on Graft-polymerization of Polystyrene Surface by Plasma Technology |
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| WAN Hai-Yan,WEI Yan-Lin,ZHAO Bao-Ming,CHEN Ya-Shao.Studies on Graft-polymerization of Polystyrene Surface by Plasma Technology[J].Chemical Research In Chinese Universities,2009,30(7):1365-1370. |
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| Authors: | WAN Hai-Yan WEI Yan-Lin ZHAO Bao-Ming CHEN Ya-Shao |
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| Institution: | Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Materials Science, Shaanxi Normal University, Xi′an 710062, China |
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| Abstract: | Polystyrene(PS) was pretreated by O2 plasma,then N-vinylpyrrolidone(NVP) was graft-poly-merized on PS surface in the Ar plasma environment. The effect of O2 plasma pretreatment on surface free energy of PS was investigated by means of contact angle(CA) and surface free energy(SE) measurements. As the result,the optimum conditions of O2 plasma pretreatment on PS surface were power 50 W,pressure 40 Pa and time 3 min. The surface composition and properties of the modified PS between pre-and post O2 plasma trea... |
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| Keywords: | Polystyrene N-vinylpyrrolidone Plasma Surface free energy Contact angle hysteresis |
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