Water → Benzene, ethenyl-, polymer with 1,3-butadiene

To a 2-gallon reactor equipped with turbine agitator blades was added 1597 g of hexane, 399 g of 34.0 wt % styrene in hexane, and 2440 g of 22.3 wt % 1,3-butadiene in hexane. To the reactor was charged 2.58 mL of 1.6 M n-butyllithium in hexane and 0.85 mL of 1.6 M 2,2-bis(2′-tetrahydrofuryl)propane in hexane. The batch was heated by applying hot water to the reactor jacket. Once the batch temperature reached 55° C., the reactor jacket was cooled with cold water. Two hours after the addition of the catalyst, the polymer cement was removed from the reactor and coagulated with 3 gallons of isopropanol containing 7 g of 2,6-di-tert-butyl-4-methylphenol, and then drum-dried. The properties of the resulting unmodified SBR are summarized in Table 4.

1. customTo a 2-gallon reactor equipped with turbine agitator blades
2. temperatureThe batch was heated
3. customreached 55° C.
4. additionTwo hours after the addition of the catalyst
5. customthe polymer cement was removed from the reactor
6. customdrum-dried

ORD record

ord-aca517b94fd346f2a86a5a37aeef6d9c

Source dataset

uspto-grants-2012_11

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08314189B2