Comonomer (original) (raw)
In polymer chemistry, a comonomer refers to a polymerizable precursor to a copolymer aside from the principal monomer. In some cases, only small amounts of a comonomer are employed, in other cases substantial amounts of comonomers are used. Furthermore, in some cases, the comonomers are statistically incorporated within the polymer chain, whereas in other cases, they aggregate. The distribution of comonomers is referred to as the "blockiness" of a copolymer. 1-Octene, 1-hexene, and 1-butene are used comonomers in the manufacture of polyethylenes. The advantages to such copolymers has led to a focus on catalysts that facilitate the incorporation of these comonomers, e.g., constrained geometry complexes.
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| dbo:abstract | In polymer chemistry, a comonomer refers to a polymerizable precursor to a copolymer aside from the principal monomer. In some cases, only small amounts of a comonomer are employed, in other cases substantial amounts of comonomers are used. Furthermore, in some cases, the comonomers are statistically incorporated within the polymer chain, whereas in other cases, they aggregate. The distribution of comonomers is referred to as the "blockiness" of a copolymer. 1-Octene, 1-hexene, and 1-butene are used comonomers in the manufacture of polyethylenes. The advantages to such copolymers has led to a focus on catalysts that facilitate the incorporation of these comonomers, e.g., constrained geometry complexes. Comonomers are often employed to improve the plastification of polymeric materials, i.e. the flexibility of the polymer. Unlike traditional plasticizers, comonomers are not leachable. In other cases, comonomers are used to introduce crosslinking. Divinylbenzene, for example, when copolymerized with styrene, gives a crosslinked polystyrene. (en) |
| dbo:thumbnail | wiki-commons:Special:FilePath/Hexene-ethyleneCom.png?width=300 |
| dbo:wikiPageID | 17747640 (xsd:integer) |
| dbo:wikiPageLength | 1844 (xsd:nonNegativeInteger) |
| dbo:wikiPageRevisionID | 1118576315 (xsd:integer) |
| dbo:wikiPageWikiLink | dbr:Catalyst dbr:Monomer dbr:1-Octene dbr:1-butene dbr:1-hexene dbc:Monomers dbr:Crosslink dbr:Constrained_geometry_complex dbr:Copolymer dbr:Styrene dbc:Polymer_chemistry dbc:Copolymers dbr:Divinylbenzene dbr:Polyethylene dbr:Plasticizer dbr:Polymer_chemistry dbr:Blockiness dbr:File:Hexene-ethyleneCom.png |
| dcterms:subject | dbc:Monomers dbc:Polymer_chemistry dbc:Copolymers |
| rdfs:comment | In polymer chemistry, a comonomer refers to a polymerizable precursor to a copolymer aside from the principal monomer. In some cases, only small amounts of a comonomer are employed, in other cases substantial amounts of comonomers are used. Furthermore, in some cases, the comonomers are statistically incorporated within the polymer chain, whereas in other cases, they aggregate. The distribution of comonomers is referred to as the "blockiness" of a copolymer. 1-Octene, 1-hexene, and 1-butene are used comonomers in the manufacture of polyethylenes. The advantages to such copolymers has led to a focus on catalysts that facilitate the incorporation of these comonomers, e.g., constrained geometry complexes. (en) |
| rdfs:label | Comonomer (en) |
| owl:sameAs | yago-res:Comonomer wikidata:Comonomer https://global.dbpedia.org/id/6cKTM |
| prov:wasDerivedFrom | wikipedia-en:Comonomer?oldid=1118576315&ns=0 |
| foaf:depiction | wiki-commons:Special:FilePath/Hexene-ethyleneCom.png |
| foaf:isPrimaryTopicOf | wikipedia-en:Comonomer |
| is dbo:wikiPageRedirects of | dbr:Co-monomer |
| is dbo:wikiPageWikiLink of | dbr:Metallacyclopentanes dbr:Monomer dbr:Decene dbr:Dental_restoration dbr:Vinyl_bromide dbr:Vinyltriethoxysilane dbr:EPDM_rubber dbr:Inverse_vulcanization dbr:Repeat_unit dbr:1-Butene dbr:1-Hexene dbr:1-Octene dbr:Concurrent_tandem_catalysis dbr:Constrained_geometry_complex dbr:Emulsion_polymerization dbr:Linear_alpha_olefin dbr:Linear_low-density_polyethylene dbr:Acrylophenone dbr:Cyclohexanedimethanol dbr:Cyclopentadiene dbr:Alpha-olefin dbr:Ethylene dbr:Hexafluoroisobutylene dbr:Hexene dbr:Poly(methyl_methacrylate) dbr:Polyethylene dbr:Polypropylene dbr:Polytetrafluoroethylene dbr:Vinyl_polymer dbr:Expanding_monomer dbr:Polyolefin dbr:Co-monomer |
| is foaf:primaryTopic of | wikipedia-en:Comonomer |
