Viscosity-molecular weight relations for an isotactic polybutene-1

Autor:	S. S. Stivala, Richard J. Valles, David W. Levi
Rok vydání:	1963
Předmět:	Heptane Materials science Polymers and Plastics Analytical chemistry General Chemistry Weight range Surfaces Coatings and Films chemistry.chemical_compound Viscosity chemistry Decalin Computational chemistry Tacticity Materials Chemistry Melting point Polybutene
Zdroj:	Journal of Applied Polymer Science. 7:97-102
ISSN:	1097-4628 0021-8995
DOI:	10.1002/app.1963.070070109
Popis:	An isotactic polybutene-1 was fractionated, and melting points of several fractions were determined. The fractions were studied by light-scattering and viscosity techniques. The parameters in the Mark-Houwink equation are [η] η 4.73 × 10−5M in heptane at 35°C., [η] = 1.50 × 10−4M in heptane at 60°C., and [η] = 9.49 × 10−5M in decalin at 115°C. The molecular weight range studied was 0.45 × 105 to 0.9 × 106.
Databáze:	OpenAIRE
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