Poly(caprolactone), M.W. ~10000 (GPC), flake or chunks, Sigma-Aldrich®

Supplier: Merck

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

M-Clarity™ quality level = MQ100

440752-250G 440752-500G 440752-5G
SIAL440752-250GEA 228 EUR
SIAL440752-250G SIAL440752-500G SIAL440752-5G
Poly(caprolactone), M.W. ~10000 (GPC), flake or chunks, Sigma-Aldrich®
Poly(caprolactone)

Polycaprolactone is a α,ω-dihydroxy functional polymer.


  • 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: 1.146 g/ml (25 °C)
MDL Number: MFCD00084404
CAS Number: 24980-41-4

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Specification Test Results

Infrared spectrum Conforms to structure
Colour test (50 wt% xylene solution) ≤150 APHA
Viscosity (50 wt% xylene solution) 400 - 1000 mPa.s
Acid value (mg KOH/g) ≤3.0
Hydroxyl value (mg KOH/g) 9.0 - 16.0
Moecular weight (by GPC) Average Mn 10000
Molecular weight Average Mw 14000

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