## Abstract The tensile drawing behaviour and the viscoelastic relaxations of three different copolymers of ethylene, containing 1‐butene, 1‐hexene and 4‐methyl‐1‐pentene as comonomer, have been studied. The composition of the copolymers is increasingly poorer in comonomer following the above order
Dynamic mechanical properties of some ethylene-propylene copolymers
✍ Scribed by Richards, John R. ;Mancke, Ralph G. ;Ferry, John D.
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1964
- Tongue
- English
- Weight
- 240 KB
- Volume
- 2
- Category
- Article
- ISSN
- 0449-2986
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## Abstract Copolymers of ethylene and C^14^‐labeled propylene were prepared with a metal‐oxide catalyst which polymerizes ethylene to a high density polymer. Methyl branches arising from the propylene were counted radiochemically and then related to the infrared absorption of films at 8.7 μ. This
## Abstract Blend systems of polystyrene‐__block__‐poly(ethylene‐co‐(ethylene‐propylene))‐__block__‐polystyrene (SEEPS) triblock copolymer with three types of hydrocarbon oil of different molecular weight were prepared. The __E__″ curves as a function of temperature exhibited two peaks; one peak at