메뉴 건너뛰기




Volumn 18, Issue 20, 1999, Pages 4147-4155

Synthesis of unbridged bis(2-R-indenyl)zirconocenes containing functional groups and investigations in propylene polymerization

Author keywords

[No Author keywords available]

Indexed keywords


EID: 0000635039     PISSN: 02767333     EISSN: None     Source Type: Journal    
DOI: 10.1021/om990083w     Document Type: Article
Times cited : (81)

References (52)
  • 28
    • 85034560823 scopus 로고    scopus 로고
    • note
    • Ferrocenecarboxylic acid was synthesized from lithioferrocene and dry ice.
  • 29
    • 3643131294 scopus 로고
    • Ph.D. Thesis, Stanford University
    • Coates, G. W. Ph.D. Thesis, Stanford University, 1994.
    • (1994)
    • Coates, G.W.1
  • 30
    • 85034559242 scopus 로고    scopus 로고
    • note
    • The preliminary X-ray structure of M4 indicates that it also crystallizes in the rac conformation with both enantiomers in the unit cell. Unfortunately, disorder in the crystal structure prevents a more detailed comparison of the structures.
  • 31
    • 85034542007 scopus 로고    scopus 로고
    • note
    • The presence of some of the free ligand in the sample of metallocene M3 may have resulted in an underestimation of the productivity of this catalyst.
  • 32
    • 85034559851 scopus 로고    scopus 로고
    • note
    • The broad molecular weight distributions appear to be a general trend for unbridged 2-arylindene catalysts that yield polymers of intermediate isotacticity. For the polymers reported here, the GPC traces are monomodal for all catalysts except M2, which shows a shoulder on the high-molecular-weight end of the distribution. The origin of these broad molecular weight distributions is not clear but is the subject of ongoing investigations,
  • 33
    • 85034540800 scopus 로고    scopus 로고
    • note
    • For random (atactic) polypropylene, [mmmm] = 6%; for pure isotactic polypropylene, [mmmm] = 100%.
  • 35
  • 36
    • 85034545914 scopus 로고    scopus 로고
    • note
    • For highly isotactic polypropylene the IR index approaches unity.
  • 40
    • 85034553416 scopus 로고    scopus 로고
    • note
    • 41
  • 48
    • 85034533703 scopus 로고    scopus 로고
    • note
    • Because the remaining solvent in the isolated solid could not be removed in vacuo, elemental analyses were off in carbon about 3%.
  • 49
    • 0003900489 scopus 로고
    • Siemens Industrial Automation, Inc., Madison, WI
    • SMART: Area-Detector Software Package; Siemens Industrial Automation, Inc., Madison, WI, 1995.
    • (1995) SMART: Area-Detector Software Package


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.