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Volumn 35, Issue 21, 2002, Pages 7883-7890

Latent bimodal polymerization of 1-hexene by a titanium-based diastereomeric catalyst containing a rac/meso-aminodiol ligand

Author keywords

[No Author keywords available]

Indexed keywords

BIMODAL POLYMERIZATION; DIASTEREOMERIC CATALYSTS;

EID: 0037044363     PISSN: 00249297     EISSN: None     Source Type: Journal    
DOI: 10.1021/ma020696b     Document Type: Article
Times cited : (45)

References (64)
  • 44
    • 2742599161 scopus 로고    scopus 로고
    • A chiral version of the catalyst has been used in our laboratory for asymmetric synthesis. (a) Manickam, G.; Sundararajan, G. Indian J. Chem. Sect. B 1996, 35 B, 1006-1011. (b) We have demonstrated earlier that the rac can be use for a transformation reaction: (i) Manivannan, R.; Sundararajan, G.; Kaminsky, W. Macromol. Rapid Commun. 2000, 21, 968-972. (ii) Manivannan, R.; Sundararajan, G.; Kaminsky, W. J. Mol. Catal. A: Chem. 2000, 160, 85-95.
    • (1996) Indian J. Chem. Sect. B , vol.35 B , pp. 1006-1011
    • Manickam, G.1    Sundararajan, G.2
  • 45
    • 0011861328 scopus 로고    scopus 로고
    • A chiral version of the catalyst has been used in our laboratory for asymmetric synthesis. (a) Manickam, G.; Sundararajan, G. Indian J. Chem. Sect. B 1996, 35 B, 1006-1011. (b) We have demonstrated earlier that the rac can be use for a transformation reaction: (i) Manivannan, R.; Sundararajan, G.; Kaminsky, W. Macromol. Rapid Commun. 2000, 21, 968-972. (ii) Manivannan, R.; Sundararajan, G.; Kaminsky, W. J. Mol. Catal. A: Chem. 2000, 160, 85-95.
    • (2000) Macromol. Rapid Commun. , vol.21 , pp. 968-972
    • Manivannan, R.1    Sundararajan, G.2    Kaminsky, W.3
  • 46
    • 0034706859 scopus 로고    scopus 로고
    • A chiral version of the catalyst has been used in our laboratory for asymmetric synthesis. (a) Manickam, G.; Sundararajan, G. Indian J. Chem. Sect. B 1996, 35 B, 1006-1011. (b) We have demonstrated earlier that the rac can be use for a transformation reaction: (i) Manivannan, R.; Sundararajan, G.; Kaminsky, W. Macromol. Rapid Commun. 2000, 21, 968-972. (ii) Manivannan, R.; Sundararajan, G.; Kaminsky, W. J. Mol. Catal. A: Chem. 2000, 160, 85-95.
    • (2000) J. Mol. Catal. A: Chem. , vol.160 , pp. 85-95
    • Manivannan, R.1    Sundararajan, G.2    Kaminsky, W.3
  • 53
    • 0010832199 scopus 로고    scopus 로고
    • 13C NMR, different form the one reported by Lin and Baird: Lin, M.; Baird, M.C. J. Organomet. Chem. 2001, 619, 62-73.
    • (2001) J. Organomet. Chem. , vol.619 , pp. 62-73
    • Lin, M.1    Baird, M.C.2
  • 58
    • 0027114577 scopus 로고    scopus 로고
    • The triad/pentad relationship for an isospecific site control is [mr] = 2[rr]; [mmmr] = [mmrr] = 2[mrrm], and E = 2[rr]/[mr] = 1 (test for enantiomorphic site control). E = 0.93 for the polyhexene obtained at -10 °C. This was true for all polymers obtained with rac: (a) Resconi, L.; Abis, L.; Franciscono, G. Macromolecules 1992, 25, 6814-6817. (b) Reference 18.
    • (1992) Macromolecules , vol.25 , pp. 6814-6817
    • Resconi, L.1    Abis, L.2    Franciscono, G.3
  • 59
    • 0027114577 scopus 로고    scopus 로고
    • Reference 18
    • The triad/pentad relationship for an isospecific site control is [mr] = 2[rr]; [mmmr] = [mmrr] = 2[mrrm], and E = 2[rr]/[mr] = 1 (test for enantiomorphic site control). E = 0.93 for the polyhexene obtained at -10 °C. This was true for all polymers obtained with rac: (a) Resconi, L.; Abis, L.; Franciscono, G. Macromolecules 1992, 25, 6814-6817. (b) Reference 18.
  • 60
    • 0034506819 scopus 로고    scopus 로고
    • Block copolymer with isotactic and atactic PP segments was obtained by polymeryl exchange between Zr and Al of the cocatalyst. Lieber, S.; Brintzinger, H.H. Macromolecules 2000, 33, 9192-9199.
    • (2000) Macromolecules , vol.33 , pp. 9192-9199
    • Lieber, S.1    Brintzinger, H.H.2
  • 63
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    • Mulle, C.; Lilge, D.; Kristen, M.O.; Jutzi, P. Angew. Chem., Int. Ed. 2000, 39, 789-792. The polymerization behavior of dialkylaminoethyl-functionalized ansa-zirconocene dichlorides for ethylene polymerization was studied in the temperature region of 90-30 °C. At high temperatures, polyethylene with unimodal distribution (pdi = 4.2) was obtained, and at low temperatures, broad molecular weight distribution (pdi = 12.6) with more contribution from high molecular weight polymer was obtained.
    • (2000) Angew. Chem., Int. Ed. , vol.39 , pp. 789-792
    • Mulle, C.1    Lilge, D.2    Kristen, M.O.3    Jutzi, P.4


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.