Matches in SemOpenAlex for { <https://semopenalex.org/work/W2028920998> ?p ?o ?g. }
Showing items 1 to 74 of
74
with 100 items per page.
- W2028920998 endingPage "596" @default.
- W2028920998 startingPage "575" @default.
- W2028920998 abstract "Abstract The barium salt of the dimeric dianion of 1,1-diphenylethylene (Ba-DPhE) initiates polymerization and copolymerization of monomers capable of anionic polymerization (butadiene, isoprene, styrene) in ethereal and hydrocarbon solvents. Ba-DPhE is more stereospecific in butadiene polymerization (up to 70% of cis-1, 4-units in hydrocarbon medium) than initiators based on other metals of Groups I and II. The relative reactivity of monomers in copolymerization processes in THF decreases in an order typical for anionic polymerization: styrene > butadiene > isoprene. The most interesting feature of organobarium initiators is their ability to form random butadiene-styrene copolymers with high cis-1,4-butadiene unit content when copolymerization proceeds in a hydrocarbon medium. A new phenomenon in anionic polymerization, the dependence of diene units structure on copolymer composition, was observed. Thus an increase of styrene content in butadienestyrene copolymer leads to conversion of cis-1,4-butadiene units into trans-1,4-units (in benzene) or to conversion of 1,4-units to 1,2-units (in THF). Similarly, an increase of butadiene content in its copolymer with isoprene (in benzene) leads to conversion of cis-1,4-isoprene units into trans-1,4-units. Spectrophotometric, conductometric, and viscometric methods were used to study organobarium active centers. Certain anomalies connected with the formation of specific aggregates due to coupling of bifunctional hydrocarbon chains with bivalent counterions were observed." @default.
- W2028920998 created "2016-06-24" @default.
- W2028920998 creator A5010021067 @default.
- W2028920998 creator A5042317396 @default.
- W2028920998 creator A5063648860 @default.
- W2028920998 date "1975-07-01" @default.
- W2028920998 modified "2023-09-26" @default.
- W2028920998 title "Anionic Polymerization and Copolymerization of Hydrocarbon Monomers Catalyzed by Organobarium Initiators" @default.
- W2028920998 cites W1524042411 @default.
- W2028920998 cites W2081141920 @default.
- W2028920998 cites W2081789615 @default.
- W2028920998 cites W2089428109 @default.
- W2028920998 cites W2313908581 @default.
- W2028920998 cites W2319744855 @default.
- W2028920998 doi "https://doi.org/10.1080/00222337508065878" @default.
- W2028920998 hasPublicationYear "1975" @default.
- W2028920998 type Work @default.
- W2028920998 sameAs 2028920998 @default.
- W2028920998 citedByCount "18" @default.
- W2028920998 countsByYear W20289209982018 @default.
- W2028920998 countsByYear W20289209982019 @default.
- W2028920998 countsByYear W20289209982020 @default.
- W2028920998 countsByYear W20289209982021 @default.
- W2028920998 crossrefType "journal-article" @default.
- W2028920998 hasAuthorship W2028920998A5010021067 @default.
- W2028920998 hasAuthorship W2028920998A5042317396 @default.
- W2028920998 hasAuthorship W2028920998A5063648860 @default.
- W2028920998 hasConcept C151286553 @default.
- W2028920998 hasConcept C15920480 @default.
- W2028920998 hasConcept C161790260 @default.
- W2028920998 hasConcept C166940927 @default.
- W2028920998 hasConcept C178790620 @default.
- W2028920998 hasConcept C185592680 @default.
- W2028920998 hasConcept C188027245 @default.
- W2028920998 hasConcept C2777566558 @default.
- W2028920998 hasConcept C2777691172 @default.
- W2028920998 hasConcept C2780443040 @default.
- W2028920998 hasConcept C2780959689 @default.
- W2028920998 hasConcept C44228677 @default.
- W2028920998 hasConcept C521977710 @default.
- W2028920998 hasConceptScore W2028920998C151286553 @default.
- W2028920998 hasConceptScore W2028920998C15920480 @default.
- W2028920998 hasConceptScore W2028920998C161790260 @default.
- W2028920998 hasConceptScore W2028920998C166940927 @default.
- W2028920998 hasConceptScore W2028920998C178790620 @default.
- W2028920998 hasConceptScore W2028920998C185592680 @default.
- W2028920998 hasConceptScore W2028920998C188027245 @default.
- W2028920998 hasConceptScore W2028920998C2777566558 @default.
- W2028920998 hasConceptScore W2028920998C2777691172 @default.
- W2028920998 hasConceptScore W2028920998C2780443040 @default.
- W2028920998 hasConceptScore W2028920998C2780959689 @default.
- W2028920998 hasConceptScore W2028920998C44228677 @default.
- W2028920998 hasConceptScore W2028920998C521977710 @default.
- W2028920998 hasIssue "4" @default.
- W2028920998 hasLocation W20289209981 @default.
- W2028920998 hasOpenAccess W2028920998 @default.
- W2028920998 hasPrimaryLocation W20289209981 @default.
- W2028920998 hasRelatedWork W1966300441 @default.
- W2028920998 hasRelatedWork W1975106166 @default.
- W2028920998 hasRelatedWork W1983065099 @default.
- W2028920998 hasRelatedWork W2030922025 @default.
- W2028920998 hasRelatedWork W2046311075 @default.
- W2028920998 hasRelatedWork W2058607370 @default.
- W2028920998 hasRelatedWork W2375676832 @default.
- W2028920998 hasRelatedWork W2378223483 @default.
- W2028920998 hasRelatedWork W2382652698 @default.
- W2028920998 hasRelatedWork W2782222023 @default.
- W2028920998 hasVolume "9" @default.
- W2028920998 isParatext "false" @default.
- W2028920998 isRetracted "false" @default.
- W2028920998 magId "2028920998" @default.
- W2028920998 workType "article" @default.