Solution Viscosity Studies On OCP VI Improvers In Oils 892152
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.
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. Download Citation
Author(s):
Maria m. Kapuscinski, Ashish Sen, Isaac D. Rubin
Affiliated:
Texaco Research Center Beacon, NY
Pages: 8
Event:
1989 SAE International Fall Fuels and Lubricants Meeting and Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
SAE Transactions Journal of Fuels and Lubricants-V98-4
Related Topics:
Polymers
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