QPAC carbon dioxide polymer granules

QPAC®40 poly(propylene carbonate)

QPAC®40 poly(propylene carbonate) is an amorphous, clear, readily processable solid polymer with long-term mechanical stability. The chemical formula is (C4H6O3)n.

QPAC®40 is available in the following forms:
  • Pellet
  • Film
  • Aqueous Dispersion/Emulsion
  • Solution

What are the applications for QPAC®40? 

QPAC®40 poly(propylene carbonate) is used as a binder with ceramic, metal, or glass powders to make high purity technical parts, pastes, inks, and coatings. Sacrificial structural applications include decomposable channel former and pore former. Non-binder applications include barrier film in plastic processing.

Key Benefits Include:
  • Excellent adhesion and improved lubricity
  • Co-firing in any atmosphere without oxidation
  • Outstanding green strength
  • Complete and clean burnout leaving less than 10 ppm ash residue, resulting in superb mechanical and/or electrical properties
  • Low-temperature decomposition is excellent for thermally sensitive materials and is more efficient than other binders
  • Products of combustion are only carbon dioxide & water
  • Excellent viscosity properties in ink/paste systems
  • Decomposition occurs in a wide range of atmospheres, including air, oxygen, nitrogen, hydrogen, argon, and vacuum
  • Range of molecular weights from 100,000 to 300,000

Typical Physical Properties of QPAC®40

Density (g/cm3)1.26
Refractive Index 1.463
Decomposition Temperature (°C) 250 (estimate)
Glass Transition Temperature (°C) 15-40
Heat of combustion (cal/gm)4,266
Heat of formation (cal/mol)-146,000
Molar Mass of repeating unit102.1
SolubilityUpon request

Safety Data Sheet for QPAC®40 poly(propylene carbonate)

Safety Data Sheet for QPAC®40 poly(propylene carbonate) Emulsion

Thermogravimetric analysis of QPAC®40