428213

Poly(ethylene-co-propylene)

average M_w ~28,700, average M_n ~9,100 (GPC vs. polyethylene stds.)

• Fórmula lineal: [CH₂CH(CH₃)]_X(CH₂CH₂)_Y
• Número de CAS: 9010-79-1
• MDL number: MFCD00134017
• UNSPSC Code: 12162002

Propiedades

• mol wt: average M_n ~9,100 (GPC vs. polyethylene stds.); average M_w ~28,700
• hardness: 30 dmm (Penetrometer, ASTM D 5)
• viscosity: 200 poise(190 °C, Brookfield Thermosel)(lit.)
• transition temp: T_g −22 °C; softening point 135 °C (ring and ball, ASTM E 28)
• density: 0.9 g/mL at 25 °C (lit.)
• SMILES string: C=C.CC=C
• InChI: 1S/C3H6.C2H4/c1-3-2;1-2/h3H,1H2,2H3;1-2H2
• InChI key: HQQADJVZYDDRJT-UHFFFAOYSA-N

Descripción

Application

Base polymer in hot melt adhesives and paper-laminating, extender and viscosity modifier in caulks and sealants and waterproofing agent in wire and cable applications.

Low odor, good heat stability, low color and broad compatibility with elastomers, plastics and tackifying resins.

Physical form

Amorphous copolymer.