1,4-Benzenedicarboxylic acid, polymer with 1,2-ethanediol and 4-hydroxybenzoic acid
CAS: 25822-54-2
Category: Organic Intermediates
| Purity | Industrial Grade ≥95%, High Purity Grade ≥98% |
| Molecular Formula | (C8H6O4·C2H6O2·C7H6O3)n |
| Molecular Weight | Variable (polymer molecular weight distribution) |
| Appearance | White to off-white thermoplastic polymer granules, flakes, or powder |
| Packaging | 25 kg kraft paper bags with polyethylene inner liner; 500 kg or 1000 kg jumbo bags for industrial applications; customized bulk packaging available |
| Testing Indicators | Appearance — Visual inspection; Chemical structure identification — FTIR spectroscopy; Composition analysis — ^1H NMR and ^13C NMR; Molecular weight distribution — Gel Permeation Chromatography (GPC); Thermal properties — DSC (ASTM D3418); Thermal stability — TGA (ASTM E1131); Moisture content — Karl Fischer titration; Intrinsic viscosity — Capillary viscometry; Residual monomers — GC-MS or HPLC analysis. |
| Storage Notes | Store in a dry, cool, and well-ventilated warehouse. Keep sealed to prevent moisture absorption and contamination. Avoid prolonged exposure to direct sunlight and high temperatures. Store away from strong oxidizing agents and reactive chemicals. |
| Lead Time | 10 days |
Aromatic polyester polymer based on terephthalic acid, ethylene glycol, and 4-hydroxybenzoic acid units. Used in high-performance engineering plastics, liquid crystal polymer related materials, specialty polyester blends, fibers, films, coatings, and composite materials. Provides improved thermal stability, rigidity, crystallinity, and chemical resistance.