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Properties of semicrystalline polyolefins. IV. Crystallization phenomena in poly-3-methyl-1-butene

✍ Scribed by I. Kirshenbaum; W. C. Feist; R. B. Isaacson

Publisher: John Wiley and Sons
Year: 1965
Tongue: English
Weight: 884 KB
Volume: 9
Category: Article
ISSN: 0021-8995
DOI: 10.1002/app.1965.070090908

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✦ Synopsis

A study has been carried out of the physical and mechanical properties and crystallization behavior of poly-&methyl-1-butene (poly-3-MB). The melt behavior of poly-3-MB waa examined by means of the depolarised light intensity (DLI) technique. These birefringence studies indicated the onset of motion in the crystalline phase of poly-3-MB at about 100°C. (over 200°C. below the melting point). These studies also showed that limited molecdr motion may occur at room temperature, i.e., about 25°C. below the glass transition temperature of poly-3-MB.

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