Molecular Mechanics of Polymeric Interactions.
Abstract
Three interfacial methods have been used to produce thin polymeric films. These are reactions at solid-gas interface, Langmuir-Blodgett, and electrochemical polymerization. The reaction at solid-gas interface involved the use of a thin monomeric film, vacuum deposited, which was subsequently exposed to a strong Lewis acid such as AsF5 in a controlled atmosphere. Two new polymers were produced: polyfuril and polyazulene. Coherent thin films of poly bis(p-toluene sulfonate) diacetylene were successfully formed by modified Langmuir-Blodgett techniques using two methods: photopolymerization of the monomer film at the gas/liquid interface and then transfer to a solid substrate; and transfer of the monomer film to the solid substrate and subsequent photopolymerization on the substrate itself. The area of polymerization of the electrode/solution interface in an electrochemical cell is highly active because of the prospect to produce high quality electroactive polymers of controlled ultrasubmicron thickness. Polyazulene was formed by anodic polymerization of azulene. Chemical doping will increase the electrical conductivities of several polymers as well as induce conformational changes in some polymers. The nature of the iodine-nylon 6 complex was by resonance Raman spectroscopy. This work revealed the presence of both I3 minus and I5 minus species. The non-linear electroacoustic effect in organic materials was investigated by the novel technique of phonon echo. The phonon echo was investigated for the d-tartaric acid and its diammonium salt as well as for the Rochelle salt by using the two-pulse technique.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1985
- Accession Number
- ADA161095
Entities
People
- Paras Nath Prasad
Organizations
- University at Buffalo