Source:http://linkedlifedata.com/resource/pubmed/id/16853812
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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
46
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| pubmed:dateCreated |
2006-7-20
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| pubmed:abstractText |
Ethylene is the simplest organic molecule containing a double bond and is the starting monomeric unit in the synthesis of polyethylene, one of the most largely produced polymers. Here we report a high pressure infrared study of ethylene at room temperature. A polymerization reaction is observed when the crystalline phase I is compressed above 3.0 GPa. The reaction kinetics was investigated at two different pressures, 3.6 and 5.4 GPa. The recovered product was identified in both cases as polyethylene, but while a conformationally disordered and branched low-density polymer is obtained at the highest pressure, a high-density crystalline polymer is obtained at 3.6 GPa. A reaction mechanism was proposed on the basis of the kinetic data and the structural information.
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| pubmed:language |
eng
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| pubmed:journal | |
| pubmed:status |
PubMed-not-MEDLINE
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| pubmed:month |
Nov
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| pubmed:issn |
1520-6106
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| pubmed:author | |
| pubmed:issnType |
Print
|
| pubmed:day |
24
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| pubmed:volume |
109
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| pubmed:owner |
NLM
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| pubmed:authorsComplete |
Y
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| pubmed:pagination |
21658-63
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| pubmed:year |
2005
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| pubmed:articleTitle |
Pressure-induced polymerization in solid ethylene.
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| pubmed:affiliation |
LENS, European Laboratory for Non-Linear Spectroscopy and INFM, Via N. Carrara 1, I-50019, Sesto Fiorentino (FI), Italy.
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| pubmed:publicationType |
Journal Article
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