Solvesso 150

Example 1

A 2 L glass reactor having an anchor stirrer was initially charged with a mixture of C₂₀-C₂₄ olefins (363.2 g, average molar mass 296 g/mol) and Solvesso 150 (231.5 g, DHC Solvent Chemie GmbH, Speldorf). The mixture was heated to 160° C. in a nitrogen stream and while stirring. To this were added, within 5 h, a solution of di-tert-butyl peroxide (29.6 g, from Akzo Nobel) in Solvesso 150 (260.5 g) and molten maleic anhydride (120.3 g). The reaction mixture was stirred at 160° C. for 1 h and then cooled to 95° C. At this temperature, water (19.9 g) was added within 3 h and then stirring was continued for 11 h.

GPC (in THF) gave an Mn=1210 g/mol, Mw=2330 g/mol for the copolymer, which corresponds to a polydispersity of 1.9.

The copolymer had a ratio of carbon atoms per acid group of 13; the acid number determined by the above method was 210.8 mg KOH/g.

Example 3

A 6 L metal reactor having an anchor stirrer was initially charged with a mixture of C₂₀-C₂₄ olefins (1743 g, average molar mass 296 g/mol) and Solvesso 150 (1297 g, DHC Solvent Chemie GmbH, Speldorf). The mixture was heated to 150° C. in a nitrogen stream and while stirring. To this were added, within 5 h, a solution of di-tert-butyl peroxide (23.7 g, from Akzo Nobel) in Solvesso 150 (912 g) and molten maleic anhydride (577 g). The reaction mixture was stirred at 150° C. for 1 h and then cooled down to 110° C. At this temperature, water (95 g) was added with increasing pressure and then the mixture was stirred for a further 3 h. GPC (in THF) gave an Mn=1500 g/mol, Mw=3200 g/mol for the copolymer, which corresponds to a polydispersity of 2.1.

Example 1

A 2 L glass reactor having an anchor stirrer was initially charged with a mixture of C₂₀-C₂₄ olefins (363.2 g, average molar mass 296 g/mol) and Solvesso 150 (231.5 g, DHC Solvent Chemie GmbH, Speldorf). The mixture was heated to 160° C. in a nitrogen stream and while stirring. To this were added, within 5 h, a solution of di-tert-butyl peroxide (29.6 g, from Akzo Nobel) in Solvesso 150 (260.5 g) and molten maleic anhydride (120.3 g). The reaction mixture was stirred at 160° C. for 1 h and then cooled down to 95° C. At this temperature, water (19.9 g) was added within 3 h and the mixture was then stirred for a further 11 h.

GPC (in THF) gave an Mn=1210 g/mol, Mw=2330 g/mol for the copolymer, which corresponds to a polydispersity of 1.9.

Example 2

A 6 L metal reactor having an anchor stirrer was initially charged with a mixture of C₂₀-C₂₄ olefins (1743 g, average molar mass 296 g/mol) and Solvesso 150 (1297 g, DHC Solvent Chemie GmbH, Speldorf). The mixture was heated to 150° C. in a nitrogen stream and while stirring. To this were added, within 5 h, a solution of di-tert-butyl peroxide (118.4 g, from Akzo Nobel) in Solvesso 150 (1041 g) and molten maleic anhydride (577 g). The reaction mixture was stirred at 150° C. for 1 h and then cooled to 110° C. At this temperature, with an increase in pressure, water (95 g) was added and then stirring was continued for 3 h.

GPC (in THF) gave an Mn=1420 g/mol, Mw=2500 g/mol for the copolymer, which corresponds to a polydispersity of 1.8.

The copolymer had a ratio of carbon atoms per acid group of 13; the acid number determined by the above method was 210.8 mg KOH/g.

Example 2

A 6 L metal reactor having an anchor stirrer was initially charged with a mixture of C₂₀-C₂₄ olefins (1743 g, average molar mass 296 g/mol) and Solvesso 150 (1297 g, DHC Solvent Chemie GmbH, Speldorf). The mixture was heated to 150° C. in a nitrogen stream and while stirring. To this were added, within 5 h, a solution of di-tert-butyl peroxide (118.4 g, from Akzo Nobel) in Solvesso 150 (1041 g) and molten maleic anhydride (577 g). The reaction mixture was stirred at 150° C. for 1 h and then cooled down to 110° C. At this temperature, water (95 g) was added with increasing pressure and then the mixture was stirred for a further 3 h. GPC (in THF) gave an Mn=1420 g/mol, Mw=2500 g/mol for the copolymer, which corresponds to a polydispersity of 1.8.