Accession Number:

ADA172096

Title:

Surface Functionalized Polyethylene Film.

Descriptive Note:

Final rept. Dec 82-Jan 86,

Corporate Author:

HARVARD UNIV CAMBRIDGE MASS DEPT OF CHEMISTRY

Personal Author(s):

• Whitesides,George M.

Report Date:

1986-06-01

Pagination or Media Count:

9.0

Abstract:

This project has 1 Developed practical methods for oxidizing the surface of low-density polyethylene film and introducing reactive organic functionality into this oxidized surface layer. 2 Explored new techniques for analyzing the surfaces of organic polymeric solids. Contact angle titration--the study of the contact angle of water on organic solids as a function of pH--has proved particularly useful and extremely surface sensitive. 3 Characterized a series of new phenomena occurring in thin organic surface layers, including thermal reconstruction of the surface a process during which functional groups in the surface migrate into the deeper parts of the polymer. 4 Examined the basic physical organic chemistry of wetting of organic solids. and 5 Applied the information from these studies to the synthesis of new interface-modifying agents, especially for adhesion promotion.

Descriptors:

• *OXIDATION
• *POLYMERIC FILMS
• *POLYETHYLENE
• SYNTHESIS
• WATER
• POLYMERS
• ADHESION
• FILMS
• SOLIDS
• SURFACES
• WETTING
• ORGANIC MATERIALS
• PARTS
• LOW DENSITY
• PH FACTOR
• TITRATION
• ORGANIC CHEMISTRY
• PHYSICAL CHEMISTRY

Subject Categories:

• Physical Chemistry
• Polymer Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE