Microstructure and Thermal Properties of Ethylene/Vinyl Chloride Copolymers
作者： Naser Pourahmady , Philip I. Bak , Robert A. Kinsey
DOI: 10.1080/10601329208054133
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摘要: Abstract The microstructure of ethylene/vinyl chloride (E/VC) copolymers, prepared by partial reduction PVC with a variety reagents, was analyzed using carbon-13 NMR spectroscopy. effect the mechanism on and stereochemistry copolymers studied. tri-n-butyltin hydride (TBTH) produced higher degrees alternating monomer units than obtained lithium aluminum (LAH). Reduction triethylborohydride (SH) blockier copolymers. correlation sequence distribution thermal stability dehydrochlorination rate in these investigated. Partial all reagents shown to produce E/VC improved compared PVC. In series TBTH reduction, improvement increased an increase E content reached maximum at 40% but dropped st...
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