tert-Butanol → Styrene acrylic acid copolymer

HRID 1109086Notes

Reaction equation

HRID 1109086 reaction equation
[C:1]([O:9]O[C:11](=O)[C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1)(=[O:8])[C:2]1C=CC=C[CH:3]=1.[C:19](O)(C)(C)C>>[CH2:19]=[CH:11][C:12]1[CH:13]=[CH:14][CH:15]=[CH:16][CH:17]=1.[C:1]([OH:9])(=[O:8])[CH:2]=[CH2:3]

Participants

3

Reactant 2

HCID 6386tert-ButanolHCID 7187Benzoyl Peroxide

Product 1

HCID 22481611Styrene acrylic acid copolymer

Conditions

Temperature
80 °C

Procedure

Two additional styrene/acrylic acid copolymers were prepared by solution polymerization (in tert-butanol at 30% monomer concentration). Benzoyl peroxide (2.0 mmoles/mole monomers) was added to the reaction mixture which was then purged with nitrogen for 10-15 min and heated to 80° C. for 16-20 hours. In the early stages of the reaction, an ice bath was used to moderate the exotherm. The resulting polymer was isolated by precipitating in water and drying in a vacuum over (60° C./1 torr). After drying, monomer conversion to polymer was measured, and the inherent viscosity (25° C. using a 0.2 wt % solution in tetrahydrofuran), and the composition (using 13C NMR of the polymer products) were determined. The characteristics of these polymers is noted in Table 5.

Workup

  1. customwas then purged with nitrogen for 10-15 min
  2. customIn the early stages of the reaction, an ice bath
  3. customThe resulting polymer was isolated
  4. customby precipitating in water
  5. customdrying in a vacuum over (60° C./1 torr)
  6. customAfter drying
  7. custom25° C.

Sources & evidence

ORD record
ord-9e30d5888f8742a4823f15f753104139
Source dataset
uspto-grants-1994_06
Patent number
US05319027

Reaction notes

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