4-Hydroxybenzoic Acid → Poly(4-hydroxybenzoic acid-co-6-hydroxy-2-naphthoic acid)

HRID 2421810Notes

Reaction equation

HRID 2421810 reaction equation
[OH:1][C:2]1[CH:10]=[CH:9][C:5]([C:6]([OH:8])=[O:7])=[CH:4][CH:3]=1.[OH:11][C:12]1[CH:13]=[C:14]2[C:19](=[CH:20][CH:21]=1)[CH:18]=[C:17]([C:22]([OH:24])=[O:23])[CH:16]=[CH:15]2.O=[Sb]O[Sb]=O>>[OH:11][C:12]1[CH:13]=[C:14]2[C:19](=[CH:20][CH:21]=1)[CH:18]=[C:17]([C:22]([OH:24])=[O:23])[CH:16]=[CH:15]2.[OH:1][C:2]1[CH:10]=[CH:9][C:5]([C:6]([OH:8])=[O:7])=[CH:4][CH:3]=1

Participants

4

Reactant 3

HCID 1354-Hydroxybenzoic AcidHCID 27652Oxo(oxostibanyloxy)stibaneHCID 855576-Hydroxy-2-naphthoic acid2×

Product 1

HCID 16212814Poly(4-hydroxybenzoic acid-co-6-hydroxy-2-naphthoic acid)

Procedure

Charging was conducted at a ratio of 0.6 mol of parahydroxybenzoic acid (PHBA) per mol of 6-hydroxy-2-naphthoic acid (HNCA), 110 ppm of a catalyst in the form of antimony trioxide was added based on the number of mols of HNCA, and the mixture was reacted for 4 hours at 300° C. under reduced pressure. Strands of molten polymer were extruded from the outlet, cooled, and cut to obtain HNCA+PHBA pellets.

Workup

  1. additionwas added
  2. customthe mixture was reacted for 4 hours at 300° C. under reduced pressure
  3. temperaturecooled

Sources & evidence

ORD record
ord-2ca7eb495a314852970b194175f3b74b
Source dataset
uspto-grants-2011_06
Patent number
US07960045B2

Reaction notes

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