Reaktion #94669

ord-a2e23f37504149c3bd39beb3611b2db2

Reaktionsgleichung

CC(C)(C)C1=C(O)C=CC(C)(C(C)(C)C)C1
2,4-di-t-butyl-4-methylphenol
→
C=CC=C.C=Cc1ccccc1.C=Cc1ccccc1
Styrene-Butadiene-Styrene

Edukte

CC(C)(C)C1=C(O)C=CC(C)(C(C)(C)C)C1
2,4-di-t-butyl-4-methylphenol

Reagenzien

Keine

Lösungsmittel

CC(C)O.Cc1ccccc1
toluene isopropyl alcohol

Reaktionsbedingungen

Detaillierte Bedingungen
See reaction.notes.procedure_details.

Aufarbeitung

  1. 1
    Sonstigethe polymer recovered
  2. 2
    workup.ADDITIONby adding the polymerization mixture to isopropyl alcohol
  3. 3
    FiltrationThe coagulated polymer was collected by filtration
  4. 4
    Sonstigedried under reduced pressure
  5. 5
    SonstigePhysical properties of the butadiene/styrene teleblock polymer prepared by this procedure

Vorschrift

Following the completion of Step III, 2,4-di-t-butyl-4-methylphenol (one part by weight per hundred parts of total monomers) was added as a 10 weight percent solution in 50/50 (by volume) toluene/isopropyl alcohol, and the polymer recovered by adding the polymerization mixture to isopropyl alcohol. The coagulated polymer was collected by filtration and dried under reduced pressure. Physical properties of the butadiene/styrene teleblock polymer prepared by this procedure are shown in Table I.

Quelle

DOI: 10.6084/m9.figshare.5104873.v1Patent: US04131725uspto-grants-1978_12