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| Titel: |
SYNTHESIS AND EVALUATION OF ETHOXYLATED POLYESTERS AS VISCOSITY INDEX IMPROVERS AND POUR POINT DEPRESSANTS FOR LUBE OIL |
| Auteur: |
Nassar, Amal M. Ahmed, Nehal S. |
| Verschenen in: |
International journal of polymeric materials |
| Paginering: | Jaargang 52 (2003) nr. 9 pagina's 821-832 |
| Jaar: |
2003-09 |
| Inhoud: |
This work is confined to the preparation and characterization of two sets of copolymeric additives. The first set is based on poly(propylene sebacate), while the second set is based on poly(propylene succinate). These two polymeric polyesters were ethoxylated with two different molecular weights of poly(ethylene glycol) (M.Wt. 400 and 600) to prepare four additives. The molecular weights of the prepared polyesters were determined by GPC. The efficiency of the prepared copolymers for improving the viscosity index and lowering the pour point of the base lube oil was studied. It was found that the efficiency increases with increased molecular weight of the prepared copolymers. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
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