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428213

Sigma-Aldrich

Poly(ethylene-co-propylene)

average Mw ~28,700, average Mn ~9,100 (GPC vs. polyethylene stds.)

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About This Item

Linear Formula:
[CH2CH(CH3)]X(CH2CH2)Y
CAS Number:
9010-79-1
MDL number:
MFCD00134017
UNSPSC Code:
12162002

mol wt

average Mn ~9,100 (GPC vs. polyethylene stds.)
average Mw ~28,700

hardness

30 dmm (Penetrometer, ASTM D 5)

viscosity

200 poise(190 °C, Brookfield Thermosel)(lit.)

transition temp

Tg −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

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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.

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