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Viscosity behavior of maleic anhydride and long-chain alkyl methacrylate copolymers in mineral oil solutions (CROSBI ID 148721)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Janović, Zvonimir ; Jukić, Ante ; Vidović, Elvira Viscosity behavior of maleic anhydride and long-chain alkyl methacrylate copolymers in mineral oil solutions // Chemistry and technology of fuels and oils, 45 (2009), 4; 267-275. doi: 10.1007/s10553-009-0144-4

Podaci o odgovornosti

Janović, Zvonimir ; Jukić, Ante ; Vidović, Elvira

engleski

Viscosity behavior of maleic anhydride and long-chain alkyl methacrylate copolymers in mineral oil solutions

The viscosity behavior of diluted, semidiluted and concentrated solutions of maleic anhydride (MA), dodecyl methacrylate (DDMA), and octadecyl methacrylate (ODMA) terpolymers in mineral oil was investigated. Terpolymers with MA molar ratio of 5 and 10% were synthesized by free radical polymerization in mineral base oil. All the terpolymer solutions in base oil exhibited high kinematic viscosity and values of viscosity index (> 140), proving very high thickening efficiency. Increasing the MA content in terpolymer decreases solution viscosity. Viscosity-concentration dependences of dilute solutions at 40 and 70 oC were described by Huggins’ equation, and intermolecular interaction were discussed. In comparison with conventional polymeric viscosity index improvers based on the pure alkyl methacrylates, copolymers of long-chain alkyl methacrylates with small amounts of MA show improved shear and thermal stabilities.

maleic anhydride ; alkyl methacrylate ; copolymers ; mineral oil ; viscosity ; viscosity index ; shear stability ; thermal stability ; pour point

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Podaci o izdanju

45 (4)

2009.

267-275

objavljeno

0009-3092

1573-8310

10.1007/s10553-009-0144-4

Povezanost rada

Kemijsko inženjerstvo

Poveznice
Indeksiranost