Synthesis and Physical Behavior of Ion-Containing, Segmented and Random Copolymer Elastomers
Abstract
A research program was conducted by the Polymer Synthesis Group of the Chemistry Department and the Polymer Materials and Interfaces Laboratory on the theme of new elastomer synthesis. The body of the report described herein subdivided into five areas of discussion. The first deals with a laboratory- scale, low-pressure reactor suitable for living polymerizations and polymer modification studies. This section is followed by a discussion of model homopolymer and block polymer elastomers obtained by hydrogenation. Next, an investigation of a hydrocarbon-soluble organolithium difunctional initiator is described. Elastomers based upon ion-containing block and random copolymers are covered as is a study of the morphology and properties of polyurea(urethane) elastomers. An important conclusion is that saturated elastomers such as butyl rubber and various halogenated derivatives as well as the ethylene-propylene copolymer (EPDM) elastomers should be investigated in high performance applications. Lastly, one concludes that significant additional effort should be conducted in the area of reactive castable elastomers based upon soft, thermally stable flexible segments linked together through poluyrea type hard segments. This approach to castable elastomers has major potential for developing reactive automated fully cured systems of high strength and good abrasion resistance.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1987
- Accession Number
- ADA176174
Entities
People
- James E. Mcgrath
Organizations
- Virginia Tech