SELF ASSEMBLY OF ORGANIC THIN FILMS

有机薄膜的自组装

• 批准号: 6345049
• 负责人: John Francis Rabolt
• 金额: $ 2.45万
• 依托单位: UNIVERSITY OF WASHINGTON
• 依托单位国家: 美国
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-09-01 至 2001-08-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6345049
• 关键词: animal tissue; bioengineering /biomedical engineering; biomaterials; biomedical resource; clinical research; health care; medical rehabilitation related tag; prosthesis; women's health

Self assembly techniques are being used to adsorb organic thin films onto gold and oxide surfaces. Both monomeric and polymeric components are used to form the organic thin films. The monomeric assemblies are comprised of alkane thiols (gold) and silanes (oxides) with varying degrees of fluorination. For thiols, the effect of the length of the fluorocarbon and hydrocarbon sections on assembly, orientation, and bonding in the resulting organic thin film is being examined. Initially films containing only one type of monomer are being examined [e.g., CF3(CF2)7(CH2)11SH]. In the future thin films prepared from mixtures of different monomers will also be examined. For silanes, the effect of surface coverage on chain orientation for vapor deposited fluorinated compounds [e.g., CF3(CF2)7(CH2)2SiCl3] is being examined. The polymeric system currently being studied is a dimethyl siloxane with three different concentrations of propyl thiol side chains. Film thickness, thiol dis tribution within the organic thin film, percent of thiol groups bound to the gold surface, and oxidation of the unbound thiol groups are being examined.

自组装技术被用来吸附有机薄膜， 金和氧化物表面上的薄膜。 单体和聚合物 组分用于形成有机薄膜。 单体 组件由烷硫醇（金）和硅烷（氧化物）组成， 有不同程度的疼痛 对于硫醇， 组装时碳氟化合物和碳氢化合物部分的长度， 取向，并在所得有机薄膜中键合， 考察 最初，仅含有一种类型的单体的膜是 正在检查[例如，CF3（CF2）7（CH2）11SH]。 未来的薄膜 还将研究由不同单体的混合物制备的聚合物。 对于硅烷，表面覆盖度对链取向的影响 气相沉积的氟化化合物[例如，CF3（CF2）7（CH2）2SiCl3]是 正在接受检查。 目前正在研究的聚合物体系是一种 具有三种不同浓度的丙基硫醇的二甲基硅氧烷 侧链。 薄膜厚度，硫醇在有机物中的分散 薄膜，结合到金表面的硫醇基团的百分比，以及 未结合的巯基的氧化正在被检测。