高等学校化学学报 ›› 1994, Vol. 15 ›› Issue (3): 411.

• 论文 • 上一篇    下一篇

接触角法研究氨丙基硅烷化石英表面

孔祥兴, 张希, 高芒来, 沈家骢   

  1. 吉林大学化学系, 长春, 130023
  • 收稿日期:1993-05-04 修回日期:1993-09-23 出版日期:1994-03-24 发布日期:1994-03-24
  • 通讯作者: 张希
  • 作者简介:孔祥兴,男,25岁,硕士研究生.
  • 基金资助:

    吉林大学分子光谱与分子结构开放实验室资助;国家教育委员会回国人员基金;吉林省科委青年基金

Studies on the Surface Aminopropylsilanized Quartz by Contact Angle Method

KONG Xiang-Xing, ZHANG Xi, GAO Mang-Lai, SHEN Jia-Cong   

  1. Department of Chemistry, Jilin University, Changchun, 130023
  • Received:1993-05-04 Revised:1993-09-23 Online:1994-03-24 Published:1994-03-24

摘要: 利用接触角法研究了氨丙基硅烷化石英表面的基因浓度及单分子层中单个分子的截面积。提出了氨丙基硅烷化的模型。

关键词: 单分子层, 接触角法, Langmuir等温吸附

Abstract: In this paper,the concentration of amino group onto aminopropylsilanized(APS)quartz was measured by using contact angle method.Using phenol as a probe, the weak acid (phenol in CH2I2 solution)/the base(APSquartz) adsorption was studied in detail, and the surface concentration of amino group on APSsurface was calculaled as 1.14 nm2/mole when the Langmuir isotherm was used.And further ,SAzoNC6OH acted as a probe, the surface adsorption concentration and molecular section area was indetified by using UV-visible absorption spectra.Comparing the area of per amino group of 0.41 nm2 from adsorption spectra measurement, a densed packing model, with hydrogen bonding existing between amino groups, was proposed.

Key words: Monomolecular layer, Contact angle, Langmuir isotherm adsorption

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