Correlation between Orientation of Crystallites and Stress-Induced Phase Transformations in Copolymers of Isotactic Poly(Butene) with Ethylene.
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DOI: 10.1002/marc.202500810
Abstract: The spontaneous transformation in isotactic poly(butene) (iPB) of kinetically favored form II into the thermodynamically stable form I at room temperature leads to dimensional instability due to changes of density and strength and has prevented… read more here.
Keywords: orientation; butene ethylene; form form; isotactic poly ... See more keywords
Mechanical properties of isotactic 1-butene-ethylene copolymers from Ziegler-Natta catalyst
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DOI: 10.1016/j.polymer.2021.123408
Abstract: Abstract The mechanical properties and elastic behavior of Ziegler-Natta isotactic 1-butene-ethylene (BuEt-ZN) copolymers, having a broad composition from 1.7 to 45.5 mol% of ethylene units, are studied. The multi-site nature of the catalytic system determines a… read more here.
Keywords: ziegler natta; mechanical properties; ethylene; butene ... See more keywords