FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1990670903> ?p ?o ?g. }

• W1990670903 endingPage "5046" @default.
• W1990670903 startingPage "5039" @default.
• W1990670903 abstract "Observation of the formation and interconversion of organo-cobalt complexes ((TMP)Co-R) is used to reveal mechanistic features in the living radical polymerization (LRP) of methyl acrylate (MA) mediated by cobalt porphyrins. Both dissociative and associative exchange of radicals in solution with organo-cobalt complexes contribute to controlling the radical polymerization. The sequence of organo-cobalt species formed during the induction period for the (TMP)Co-R mediated LRP of MA indicates that homolytic dissociation is a prominent pathway for the interconversion of organo-cobalt complexes which contrasts with the corresponding vinyl acetate (VAc) system where associative radical exchange totally dominates these processes. The dissociation equilibrium constant (Kd(333 K)) for organo-cobalt complexes formed in methyl acrylate polymerization ((TMP)Co-CH(CO2CH3)CH2P) was estimated as 1.15 × 10−10 from analysis of the polymerization kinetics and 1H NMR. The ratio of the rate constants (333 K) for the cyanoisopropyl radical (•C(CH3)2CN) adding with monomer (k1) to the process of transferring a hydrogen atom to (TMP)CoII• (k2) was evaluated for the methyl acrylate system as 2 × 10−3 which is larger than that for vinyl acetate LRP (9 × 10−5). Kinetic analysis places the rate constant for associative radical interchange (333 K) at ∼7 × 105 M−1 s−1. The larger radical stabilization energy and lower energy of the singly occupied molecular orbital (SOMO) for methyl acrylate based radicals (•CH(CO2CH3)CH2P) compared to vinyl acetate contribute to the observed prominence of organo-cobalt homolytic dissociation and much smaller chain transfer which result in substantially better control for living radical polymerization of methyl acrylate than that observed for vinyl acetate." @default.
• W1990670903 created "2016-06-24" @default.
• W1990670903 creator A5004366207 @default.
• W1990670903 creator A5066494794 @default.
• W1990670903 creator A5089786751 @default.
• W1990670903 date "2009-05-07" @default.
• W1990670903 modified "2023-10-09" @default.
• W1990670903 title "Formation and Interconversion of Organo-Cobalt Complexes in Reactions of Cobalt(II) Porphyrins with Cyanoalkyl Radicals and Vinyl Olefins" @default.
• W1990670903 cites W1966863664 @default.
• W1990670903 cites W1967626452 @default.
• W1990670903 cites W1970049431 @default.
• W1990670903 cites W1970551102 @default.
• W1990670903 cites W1977127781 @default.
• W1990670903 cites W1977455480 @default.
• W1990670903 cites W1982120696 @default.
• W1990670903 cites W1984107956 @default.
• W1990670903 cites W1991102672 @default.
• W1990670903 cites W2000046957 @default.
• W1990670903 cites W2001929588 @default.
• W1990670903 cites W2005244618 @default.
• W1990670903 cites W2008443986 @default.
• W1990670903 cites W2019137038 @default.
• W1990670903 cites W2034142003 @default.
• W1990670903 cites W2037789134 @default.
• W1990670903 cites W2040870219 @default.
• W1990670903 cites W2048426960 @default.
• W1990670903 cites W2055393399 @default.
• W1990670903 cites W2061307880 @default.
• W1990670903 cites W2062044551 @default.
• W1990670903 cites W2065686030 @default.
• W1990670903 cites W2067836734 @default.
• W1990670903 cites W2070330352 @default.
• W1990670903 cites W2074554162 @default.
• W1990670903 cites W2076360033 @default.
• W1990670903 cites W2079335509 @default.
• W1990670903 cites W2079986407 @default.
• W1990670903 cites W2081874372 @default.
• W1990670903 cites W2083469618 @default.
• W1990670903 cites W2085287346 @default.
• W1990670903 cites W2085445369 @default.
• W1990670903 cites W2087153412 @default.
• W1990670903 cites W2088890545 @default.
• W1990670903 cites W2089076242 @default.
• W1990670903 cites W2093474297 @default.
• W1990670903 cites W2094947865 @default.
• W1990670903 cites W2104018884 @default.
• W1990670903 cites W2110720435 @default.
• W1990670903 cites W2123101556 @default.
• W1990670903 cites W2136018565 @default.
• W1990670903 cites W2150184000 @default.
• W1990670903 cites W2315439440 @default.
• W1990670903 doi "https://doi.org/10.1021/ic900384n" @default.
• W1990670903 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/19422190" @default.
• W1990670903 hasPublicationYear "2009" @default.
• W1990670903 type Work @default.
• W1990670903 sameAs 1990670903 @default.
• W1990670903 citedByCount "22" @default.
• W1990670903 countsByYear W19906709032012 @default.
• W1990670903 countsByYear W19906709032013 @default.
• W1990670903 countsByYear W19906709032014 @default.
• W1990670903 countsByYear W19906709032015 @default.
• W1990670903 countsByYear W19906709032016 @default.
• W1990670903 countsByYear W19906709032017 @default.
• W1990670903 countsByYear W19906709032018 @default.
• W1990670903 countsByYear W19906709032019 @default.
• W1990670903 countsByYear W19906709032020 @default.
• W1990670903 countsByYear W19906709032021 @default.
• W1990670903 crossrefType "journal-article" @default.
• W1990670903 hasAuthorship W1990670903A5004366207 @default.
• W1990670903 hasAuthorship W1990670903A5066494794 @default.
• W1990670903 hasAuthorship W1990670903A5089786751 @default.
• W1990670903 hasConcept C102931765 @default.
• W1990670903 hasConcept C111998727 @default.
• W1990670903 hasConcept C121332964 @default.
• W1990670903 hasConcept C139066938 @default.
• W1990670903 hasConcept C148898269 @default.
• W1990670903 hasConcept C166940927 @default.
• W1990670903 hasConcept C175689099 @default.
• W1990670903 hasConcept C178790620 @default.
• W1990670903 hasConcept C185592680 @default.
• W1990670903 hasConcept C188027245 @default.
• W1990670903 hasConcept C2778004933 @default.
• W1990670903 hasConcept C44228677 @default.
• W1990670903 hasConcept C515602321 @default.
• W1990670903 hasConcept C521977710 @default.
• W1990670903 hasConcept C62396407 @default.
• W1990670903 hasConcept C62520636 @default.
• W1990670903 hasConcept C75473681 @default.
• W1990670903 hasConcept C93391505 @default.
• W1990670903 hasConceptScore W1990670903C102931765 @default.
• W1990670903 hasConceptScore W1990670903C111998727 @default.
• W1990670903 hasConceptScore W1990670903C121332964 @default.
• W1990670903 hasConceptScore W1990670903C139066938 @default.
• W1990670903 hasConceptScore W1990670903C148898269 @default.
• W1990670903 hasConceptScore W1990670903C166940927 @default.
• W1990670903 hasConceptScore W1990670903C175689099 @default.
• W1990670903 hasConceptScore W1990670903C178790620 @default.
• W1990670903 hasConceptScore W1990670903C185592680 @default.

• next