引用本文:
黄胜梅, 张莹雪, 林志勇, 钱浩. 聚醚硅油对聚苯乙烯表面极性的改性[J]. 应用化学,
2006, 23(10): 1120-1123.
Citation: HUANG Sheng-Mei, ZHANG Ying-Xue, LIN Zhi-Yong, QIAN Hao. Modification of Surface Polarity of Polystyrene by Polyether Silicone Oil[J]. Chinese Journal of Applied Chemistry, 2006, 23(10): 1120-1123.
Citation: HUANG Sheng-Mei, ZHANG Ying-Xue, LIN Zhi-Yong, QIAN Hao. Modification of Surface Polarity of Polystyrene by Polyether Silicone Oil[J]. Chinese Journal of Applied Chemistry, 2006, 23(10): 1120-1123.
聚醚硅油对聚苯乙烯表面极性的改性
摘要:
利用聚醚硅油中硅油链段的表面活性,引导聚醚链段向聚苯乙烯表面迁移扩散,有效地提高了聚苯乙烯薄膜的表面极性和亲水性,水的接触角下降了70°,表面自由能增幅达180%,极性分量增加了9倍。采用ATR-FTIR测试技术检测了聚醚硅油中硅油链段在共混物薄膜表面的"靶向"作用,分析了不同接触介质对聚醚硅油改性作用的影响。结果表明,玻璃介质通过诱导作用促使聚醚硅油产生表面迁移行为,而空气介质中,硅油链段的良好靶向作用引导聚醚硅油分子在聚合物表面充分富集。
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关键词:
- 变角衰减全反射傅立叶变换红外光谱
- / 接触角
- / 表面极性
- / 聚醚硅油
- / 表面能
English
Modification of Surface Polarity of Polystyrene by Polyether Silicone Oil
Abstract:
The surface modification of polystyrene films via selective aggregation of polyether silicone oil(PSO) on their surfaces was studied.Because of the surface activity of the silicone oil chain segments,the(selective) migration of PSO was greatly increased.Owing to the good hydrophilicity of the polyether chain segments,the surface free energy(γ) of the blends was enhanced by 180%,and the polar portion of its γ increased nine times.Attenuated total reflectance Fourier transform infrared spectroscopy(ATR-FTIR) and contact angle measurement were used to detect the surface structure and surface properties.It was found that the influence of contact medium on the selective migration of polyether silicone oil was important.Glass substrate can induce more polyether chain segments to segregate at the polystyrene/substrate interface and air can induce more silicon oil chain segments to the polymer surface.
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