This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Solution Viscosity Studies On OCP VI Improvers In Oils
Annotation ability available
Sector:
Language:
English
Abstract
MRV, CCS, and solution viscosity data were obtained on oil solutions of several OCP VI improvers with ethylene to propylene molar ratios of 60:40 to 80:20. High amounts of ethylene accompanied by some crystalline structure resulted in lower MRV and CCS values. For amorphous copolymers, intrinsic viscosities showed little variation with temperature over the range of −10 to 50 C. For partially crystalline copolymers they decreased precipitously at low temperature. The data can be explained by postulating that increased amounts of ethylene and resulting crystallinity lead to interaction and ordered domains in solution at low temperatures, giving rise to additional contraction of the copolymer above that expected for a totally amorphous material.
Recommended Content
Technical Paper | Correlations of Accelerated and Outdoor Weathering of an ASA Polymer System |
Technical Paper | Steric Repulsion of Polymethacrylate Layers |
SAE ITC E&A Standard | AS41087 Spiral Wrapping. Nylon |
Authors
Topic
Citation
Kapuscinski, M., Sen, A., and Rubin, I., "Solution Viscosity Studies On OCP VI Improvers In Oils," SAE Technical Paper 892152, 1989, https://doi.org/10.4271/892152.Also In
References
- Billmeyer F. W. Jr. Textbook of Polymer Science Interscience Publishers New York, NY 1962
- Flory P. J. Principles of Polymer Science Cornell University Press Ithaca, NY 1953