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Volumn 33, Issue 11, 2000, Pages 3970-3977

Controlled polymerization of DL-lactide and ε-caprolactone by structurally well-defined alkoxo-bridged Di- and triyttrium(III) complexes

Author keywords

[No Author keywords available]

Indexed keywords

ALCOHOLS; CATALYSTS; DIMERS; MOLECULAR STRUCTURE; MOLECULAR WEIGHT; MONOMERS; POLYESTERS; REACTION KINETICS; SYNTHESIS (CHEMICAL); X RAY DIFFRACTION ANALYSIS; YTTRIUM COMPOUNDS;

EID: 0033745599     PISSN: 00249297     EISSN: None     Source Type: Journal    
DOI: 10.1021/ma0000834     Document Type: Article
Times cited : (128)

References (32)
  • 14
    • 0001722306 scopus 로고
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    • (a) McLain, S. J.; Drysdale, N. E. Polym. Prepr. (Am. Chem. Soc., Div. Polm. Chem.) 1992, 33, 174.
    • (1992) Polym. Prepr. , vol.33 , pp. 174
    • McLain, S.J.1    Drysdale, N.E.2
  • 19
    • 0032492570 scopus 로고    scopus 로고
    • At conversions below 90%, the PDI values for aluminum alkoxide complexes are generally below 1.2
    • At conversions below 90%, the PDI values for aluminum alkoxide complexes are generally below 1.2. See: Kowalski, A.; Duda, A.; Penczek, S. Macromolecules 1998, 31, 2114.
    • (1998) Macromolecules , vol.31 , pp. 2114
    • Kowalski, A.1    Duda, A.2    Penczek, S.3
  • 21
    • 0343580584 scopus 로고    scopus 로고
    • note
    • We cannot rule out some initiation of polymerization by alkoxide arms of the macrocyclic ligand in the complexes described in this paper.
  • 22
    • 0025404510 scopus 로고
    • eq)] is plotted as a function of time. Using data in Duda, A.; Penczek, S. Macromolecules 1990, 23, 1636, the equilibrium concentration of lactide for a polymerization at 20°C was calculated to be 0.012 M, in fair agreement with the observed equilibrium concentration of monomer in our polymerizations (0.047 M).
    • (1990) Macromolecules , vol.23 , pp. 1636
    • Duda, A.1    Penczek, S.2
  • 23
    • 0343580583 scopus 로고    scopus 로고
    • note
    • eq = 0.047 M). We expected the equilibrium concentration to be a constant at fixed temperature, and at this time we are unable to explain the source of this discrepancy.
  • 24
    • 0342710500 scopus 로고    scopus 로고
    • note
    • 3, 25°C), resonances for oligomeric species could not be differentiated from those of PCL.
  • 25
    • 0342275337 scopus 로고    scopus 로고
    • note
    • n steadily increased at short reaction times, these polymerizations were run for 16 h.
  • 28
    • 0025416533 scopus 로고
    • Am. Chem. Soc. Div. Polym. Chem
    • Reference 13 and (a) Duda, A.; Penczek, S. Polym. Prepr. (Am. Chem. Soc. Div. Polym. Chem) 1990, 31, 12.
    • (1990) Polym. Prepr. , vol.31 , pp. 12
    • Duda, A.1    Penczek, S.2
  • 30
    • 0003626215 scopus 로고
    • Am. Chem. Soc. Div. Polym. Chem
    • (c) Penczek, S.; Duda, A.; Biela, T. Polym. Prepr. (Am. Chem. Soc. Div. Polym. Chem) 1994, 35, 508.
    • (1994) Polym. Prepr. , vol.35 , pp. 508
    • Penczek, S.1    Duda, A.2    Biela, T.3
  • 32
    • 0004150157 scopus 로고    scopus 로고
    • Siemens Industrial Automation, Inc., Madison, WI
    • SHELXTL-Plus V5.0, Siemens Industrial Automation, Inc., Madison, WI.
    • SHELXTL-Plus V5.0


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.