Self-Assembled Organic Monolayer Films
Abstract
This project comprised three components, all relevant to organic surface chemistry. 1) Polymer Surface Functionalization. This research has developed a comprehensive surface chemistry for surface-oxidized low-density polyethylene film, and used the resulting surface-functionalized materials to define the stability and properties of this class of materials. 2) Self- Assembled Organic Monolayer Films. This work has tested methods for making several classes of self-assembled organic monolayer films, and has examined the structure of these films using a range of spectroscopic techniques (especially X-ray photo electron spectroscopy, polarized reflectance infrared spectroscopy, and low-angle X-ray reflection). The best ordered monolayers (which are quasi 2-D crystals) are obtained by reaction of alkyltrichlorosilanes on silicon or chemisorption of alkanethiols on gold. 3) Physical-Organic Chemistry of Wetting. Wetting has been extensively explored as a probe of surface structure and composition. It has useful characteristics that complement the spectroscopic methods: it is very sensitive to surface structure, and responds only to the top approx. 5 A of the surface; it is applicable to the solid-liquid interface; it is inexpensive to study. A reasonably sound understanding of static wetting at equilibrium is now in hand; the kinetics of wetting are still being explored. (aw)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 15, 1989
- Accession Number
- ADA212006
Entities
Organizations
- Harvard University