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Volumn 33, Issue 23, 2000, Pages 8618-8628

Copper ATRP catalysts with quadridentate amine ligands: The effects of steric and electronic tuning on the polymerization of methyl methacrylate

Author keywords

[No Author keywords available]

Indexed keywords

AMINES; CATALYST ACTIVITY; COMPLEXATION; COPPER; FLUORINE CONTAINING POLYMERS; FREE RADICAL POLYMERIZATION; MOLECULAR WEIGHT; MONOMERS; OXIDATION; REACTION KINETICS;

EID: 0034318603     PISSN: 00249297     EISSN: None     Source Type: Journal    
DOI: 10.1021/ma9911905     Document Type: Article
Times cited : (44)

References (77)
  • 2
    • 0343384184 scopus 로고    scopus 로고
    • ACS Symposium Series 685; American Chemical Society: Washington, DC
    • (b) Matyjaszewski, K., Ed. Controlled Radical Polymerizations; ACS Symposium Series 685; American Chemical Society: Washington, DC, 1998.
    • (1998) Controlled Radical Polymerizations
    • Matyjaszewski, K.1
  • 51
  • 63
    • 0006751118 scopus 로고
    • See ref 32 for additional examples
    • 31a Newkome and co-workers have observed a similar "obstacle effect" in Pd(II) complexes of picolylamines. Newkome, G. R.; Frere, Y. A.; Fronczek, F. R.; Gupta, V. K. Inorg. Chem. 1985, 24, 1001. See ref 32 for additional examples.
    • (1985) Inorg. Chem. , vol.24 , pp. 1001
    • Newkome, G.R.1    Frere, Y.A.2    Fronczek, F.R.3    Gupta, V.K.4
  • 64
    • 0029892759 scopus 로고    scopus 로고
    • 3CN, acetone) even at elevated temperatures. Beige and/or silver impurities formed in the solids over time (∼3 days) even when stored under vacuum and protected from light. This is consistent with observations previously reported for this and related silver salts, (a) Hayashi, Y.; Rohde, J. J.; Corey, E. J. J. Am. Chem. Soc. 1996, 118, 5501.
    • (1996) J. Am. Chem. Soc. , vol.118 , pp. 5501
    • Hayashi, Y.1    Rohde, J.J.2    Corey, E.J.3
  • 68
    • 0343384144 scopus 로고    scopus 로고
    • note
    • Reactions that failed to show appreciable conversion ( < 10%) after 10 h trial reactions were considered to display negligible reactivity. It is possible, however, that some of these complexes are still effective catalysts for the ATRP of MMA but that they possess long induction periods or they react very slowly.
  • 69
    • 0343384143 scopus 로고    scopus 로고
    • note
    • Since in situ reactions with purified CuBr, 5, and xylenes in the absence of Cu(0) did proceed to an appreciable extent but with slightly broader molecular weight distributions (PDI ∼1.3), the lower reactivity is probably attributable to partial oxidation of Cu(I) during precomplexed catalyst preparation.
  • 74
    • 0343384141 scopus 로고    scopus 로고
    • note
    • 2O purification. 17, 260, 15% conversion; PDIs ∼ 2.2-3.9).
  • 77
    • 0343819819 scopus 로고    scopus 로고
    • note
    • 2 and EtOH.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.