Matches in SemOpenAlex for { <https://semopenalex.org/work/W4232044529> ?p ?o ?g. }
Showing items 1 to 56 of
56
with 100 items per page.
- W4232044529 endingPage "8" @default.
- W4232044529 startingPage "8" @default.
- W4232044529 abstract "Coordination polymerization of polar monomers bearing two functional groups has been a formidable challenge due to much higher poisonous possibility. In this contribution, we reported the coordination (co)polymerization of FMOSs bearing two functional groups, 4-fluoro-2-methoxystyrene (2,4-FMOS), 5-fluoro-2-methoxystyrene (2,5-FMOS) and 6-fluoro-2-methoxystyrene (2,6-FMOS) using the quinolyl methylene fluorenyl complexes (Flu-CH2-Qu)Sc(CH2SiMe3)2 (1) and (Flu-CH2-Qu)Y(CH2SiMe3)2(THF) (2) and the β-diketiminato complex (bis(2,6-dimethyl anilido)ketimine)Y(CH2SiMe3)2(THF) (3). Excellent syndiotactic P(2,6-FMOS) (rrrr > 99%) was isolated from complex 1 in a moderate activity, while, almost atactic P(2,6-FMOS) was obtained by complexes 2 and 3. Polymerizations of both 2,4-FMOS and 2,5-FMOS showed high activities and excellent syndioselectivity (rrrr>99%) by complexes 1 and 2, and perfect isoselectivity (mmmm > 99%) by complex 3. Moreover, copolymerizations of ethylene (E)/2,4-FMOS and E/2,6-FMOS catalyzed by complex 1, respectively, displayed the positive comonomer effect in much higher activities than those of E/2,5-FMOS and E/2-methoxystyrene (MOS) to afford perfect isotactic (mmmm > 99%) alternating products E-alt-FMOS. This work represents the first example of isoselective alternating copolymerization of E and the unprotected polar styrenes, in particular those bearing two polar substituents. The reasons for the formation of isoselective and alternating structures of polymers might be attributed to the unique synergistic effects of fluorine and o-methoxy groups. The mechanism was elucidated by the DFT calculations." @default.
- W4232044529 created "2022-05-12" @default.
- W4232044529 date "2006-06-01" @default.
- W4232044529 modified "2023-09-26" @default.
- W4232044529 title "Multiphase Homogeneous Catalysis" @default.
- W4232044529 doi "https://doi.org/10.1016/s1351-4180(06)71692-0" @default.
- W4232044529 hasPublicationYear "2006" @default.
- W4232044529 type Work @default.
- W4232044529 citedByCount "1" @default.
- W4232044529 crossrefType "journal-article" @default.
- W4232044529 hasConcept C121332964 @default.
- W4232044529 hasConcept C1276947 @default.
- W4232044529 hasConcept C15920480 @default.
- W4232044529 hasConcept C166940927 @default.
- W4232044529 hasConcept C178790620 @default.
- W4232044529 hasConcept C185592680 @default.
- W4232044529 hasConcept C188027245 @default.
- W4232044529 hasConcept C192562407 @default.
- W4232044529 hasConcept C2780672802 @default.
- W4232044529 hasConcept C29705727 @default.
- W4232044529 hasConcept C44228677 @default.
- W4232044529 hasConcept C521977710 @default.
- W4232044529 hasConcept C58018886 @default.
- W4232044529 hasConceptScore W4232044529C121332964 @default.
- W4232044529 hasConceptScore W4232044529C1276947 @default.
- W4232044529 hasConceptScore W4232044529C15920480 @default.
- W4232044529 hasConceptScore W4232044529C166940927 @default.
- W4232044529 hasConceptScore W4232044529C178790620 @default.
- W4232044529 hasConceptScore W4232044529C185592680 @default.
- W4232044529 hasConceptScore W4232044529C188027245 @default.
- W4232044529 hasConceptScore W4232044529C192562407 @default.
- W4232044529 hasConceptScore W4232044529C2780672802 @default.
- W4232044529 hasConceptScore W4232044529C29705727 @default.
- W4232044529 hasConceptScore W4232044529C44228677 @default.
- W4232044529 hasConceptScore W4232044529C521977710 @default.
- W4232044529 hasConceptScore W4232044529C58018886 @default.
- W4232044529 hasIssue "6" @default.
- W4232044529 hasLocation W42320445291 @default.
- W4232044529 hasOpenAccess W4232044529 @default.
- W4232044529 hasPrimaryLocation W42320445291 @default.
- W4232044529 hasRelatedWork W1483126953 @default.
- W4232044529 hasRelatedWork W1970111938 @default.
- W4232044529 hasRelatedWork W1973693107 @default.
- W4232044529 hasRelatedWork W2041382885 @default.
- W4232044529 hasRelatedWork W2059795807 @default.
- W4232044529 hasRelatedWork W2088249332 @default.
- W4232044529 hasRelatedWork W2107304919 @default.
- W4232044529 hasRelatedWork W2161289326 @default.
- W4232044529 hasRelatedWork W2798584959 @default.
- W4232044529 hasRelatedWork W2916975532 @default.
- W4232044529 hasVolume "2006" @default.
- W4232044529 isParatext "false" @default.
- W4232044529 isRetracted "false" @default.
- W4232044529 workType "article" @default.