Poly(caprolactone), M.W. 80000, pellets ~3 mm, Sigma-Aldrich®

Supplier: Merck

Synonyms: 6-Caprolactone polymer, 2-Oxepanone homopolymer, PCL

M-Clarity™ quality level = MQ200

440744-250G 440744-500G 440744-5G
SIAL440744-250GEA 226 EUR
SIAL440744-250G SIAL440744-500G SIAL440744-5G
Poly(caprolactone), M.W. 80000, pellets ~3 mm, Sigma-Aldrich®
Poly(caprolactone)

Polycaprolactone (PCL) is a semi crystalline hydrophobic polyester. Act as a drug delivery agent and when loaded with antibiotics it is used to treat infections of the respiratory tract, like tuberculosis.


  • Non-toxic
  • Good adhesion to a broad spectrum of substrates
  • Broad miscibility


PCL are generally used as a extrusion aid, die lubricant, pigment and filler dispersion aid, mold release, polyester segments in urethanes and block polyesters.

Formula: (C₆H₁₀O₂)n
MW: 114.1400 g/mol
Melting Pt: 60 °C (lit.)
Density: 1.145 g/ml (25 °C)
MDL Number: MFCD00084404
CAS Number: 24980-41-4

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Specification Test Results

Infrared spectrum Conforms to structure
Water content (impurities) <0.5%
Melt flow index (160 degrees celsius/5.00 kg) 2.01 - 4.03
Molecular weight Average Mn 80000

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