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Volumn 26, Issue 17, 2007, Pages 4204-4211

Silica-grafted diethylzinc and a sil sesquioxane-based zinc alkyl complex as catalysts for the alternating oxirane-carbon dioxide copolymerization

Author keywords

[No Author keywords available]

Indexed keywords

CARBON DIOXIDE; CATALYSTS; COPOLYMERIZATION; GRAFT COPOLYMERS; METAL COMPLEXES; ZINC COMPOUNDS;

EID: 34548188513     PISSN: 02767333     EISSN: None     Source Type: Journal    
DOI: 10.1021/om700367x     Document Type: Article
Times cited : (30)

References (97)
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    • Beckman, E.J.1
  • 56
    • 34548162290 scopus 로고    scopus 로고
    • 2 copolymerization catalysts form inactive complexes in the presence of water. For those systems that are water-stable, water can function as a chain-transfer agent, which leads to oligomers rather than polymers.
    • 2 copolymerization catalysts form inactive complexes in the presence of water. For those systems that are water-stable, water can function as a chain-transfer agent, which leads to oligomers rather than polymers.
  • 57
    • 0033732391 scopus 로고    scopus 로고
    • See, for example: a
    • See, for example: (a) Hlatky, G. G. Chem. Rev. 2000, 100, 1347-1376.
    • (2000) Chem. Rev , vol.100 , pp. 1347-1376
    • Hlatky, G.G.1
  • 71
    • 0036809715 scopus 로고    scopus 로고
    • and references therein
    • (b) Duchateau, R. Chem. Rev. 2002, 102, 3525-3542 and references therein.
    • (2002) Chem. Rev , vol.102 , pp. 3525-3542
    • Duchateau, R.1
  • 84
    • 34548190942 scopus 로고    scopus 로고
    • C50H82O12Si8Zn 2)2, Mr, 2461.32, monoclinic, P21/n, a, 14.8772(6) Å, b, 17.9401(7) Å, c, 21.9733(8) Å, β= 90.006(1)°, V, 5864.6(4) Å3, Z= 2, Dx= 1.394 g·cm-3, F(000, 2600, μ, 10.38 cm-1, T, 110 K, 53279 reflections measured, GOF, 1.041, Rw(F2, 0.0869, R(F, 0.0327. Data were collected on a Nonius Kappa CCD area detector with a graphite monochromator λ, 0.71073 Å
    • 2) = 0.0869, R(F) = 0.0327. Data were collected on a Nonius Kappa CCD area detector with a graphite monochromator (λ = 0.71073 Å).
  • 87
    • 34548192141 scopus 로고    scopus 로고
    • Reaction conditions: 100 μmol of the dimeric catalyst, 15 mL of CHO, 35 mL of toluene, 120 °C, 80 bar.
    • Reaction conditions: 100 μmol of the dimeric catalyst, 15 mL of CHO, 35 mL of toluene, 120 °C, 80 bar.
  • 89
    • 34548155364 scopus 로고    scopus 로고
    • A silanol group is more acidic than a cyclohexanol, which is a good indication that the silanol is a better leaving group. See ref 14
    • A silanol group is more acidic than a cyclohexanol, which is a good indication that the silanol is a better leaving group. See ref 14.
  • 91
    • 34548157646 scopus 로고    scopus 로고
    • 2.
    • 2.
  • 93
    • 34548149116 scopus 로고    scopus 로고
    • 2 mixtures at 120 °C and 20% conversion is typically lower than 2%.
    • 2 mixtures at 120 °C and 20% conversion is typically lower than 2%.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.