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Volumn 43, Issue 15, 2010, Pages 6278-6283

Branched poly(phenylacetylene)

Author keywords

[No Author keywords available]

Indexed keywords

ASYMMETRIC FLOWS; BRANCHED POLYMER; CATALYST STRUCTURES; CHAIN TRANSFER TO POLYMER; LINEAR CHAIN; MACROMONOMER; MULTI-ANGLE LIGHT SCATTERINGS; PHOSPHINE LIGANDS; POLY(PHENYLACETYLENE); POLYMERIZATION CONDITIONS; RH COMPLEXES; SEC-MALS; TERMINAL BRANCHING;

EID: 77955254988     PISSN: 00249297     EISSN: None     Source Type: Journal    
DOI: 10.1021/ma100893s     Document Type: Article
Times cited : (22)

References (56)
  • 1
    • 0032142693 scopus 로고    scopus 로고
    • Some review articles on hyperbranched polymers
    • Some review articles on hyperbranched polymers: Kim, Y. H. J. Polym. Sci., Part A: Polym. Chem. 1998, 36, 1685-1698
    • (1998) J. Polym. Sci., Part A: Polym. Chem. , vol.36 , pp. 1685-1698
    • Kim, Y.H.1
  • 10
    • 0003495893 scopus 로고    scopus 로고
    • 4 th ed.; Wiley-Interscience: New York
    • Odian, G. In Principles of Polymerization, 4 th ed.; Wiley-Interscience: New York, 2004; pp 250 - 254.
    • (2004) Principles of Polymerization , pp. 250-254
    • Odian, G.1
  • 12
    • 0442277945 scopus 로고    scopus 로고
    • For a review of MM and branching distributions in such materials see
    • For a review of MM and branching distributions in such materials see: Soares, J. B. P. Macromol. Mater. Eng. 2004, 289, 70-87
    • (2004) Macromol. Mater. Eng. , vol.289 , pp. 70-87
    • Soares, J.B.P.1
  • 14
    • 0002059435 scopus 로고    scopus 로고
    • Polymers, Electrically Conducting
    • 6 th ed.; Wiley-VCH: Weinheim
    • Naarmann, H. Polymers, Electrically Conducting. In Ullmann's Encyclopedia of Industrial Chemistry, 6 th ed.; Wiley-VCH: Weinheim, 2002; Vol. A21, pp 429 - 447.
    • (2002) Ullmann's Encyclopedia of Industrial Chemistry , vol.21 , pp. 429-447
    • Naarmann, H.1
  • 47
    • 77955242910 scopus 로고    scopus 로고
    • We thank Wyatt Technology Inc. of Santa Barbara, CA, for a generous loan of this equipment to the Instituto Universitario de Catálisis Homogénea.
    • We thank Wyatt Technology Inc. of Santa Barbara, CA, for a generous loan of this equipment to the Instituto Universitario de Catálisis Homogénea.
  • 48
    • 24944584172 scopus 로고    scopus 로고
    • For degradation of PPA in solution and the bulk state see
    • For degradation of PPA in solution and the bulk state see: Percec, V.; Rudick, J. G. Macromolecules 2005, 38, 7241-7250
    • (2005) Macromolecules , vol.38 , pp. 7241-7250
    • Percec, V.1    Rudick, J.G.2
  • 50
    • 0033719510 scopus 로고    scopus 로고
    • It should be noted that the slope of the linear portions of these conformation plots varied between 0.55 and 0.65 in THF solution. Normally, one would expect a slope of ca. 0.58 for a linear polymer in a good solvent. We suspect the variation reflects the complexity of PPA behavior seen in dilute solution where both mass and size can be time and solvent dependent, reflecting s-trans to s-cis isomerization accompanied by changes to solvent-polymer and polymer-polymer interactions. See
    • It should be noted that the slope of the linear portions of these conformation plots varied between 0.55 and 0.65 in THF solution. Normally, one would expect a slope of ca. 0.58 for a linear polymer in a good solvent. We suspect the variation reflects the complexity of PPA behavior seen in dilute solution where both mass and size can be time and solvent dependent, reflecting s-trans to s-cis isomerization accompanied by changes to solvent-polymer and polymer-polymer interactions. See: Cametti, C.; Codastefano, P.; D'Amato, R.; Furlani, A.; Russo, M. V. Synth. Met. 2000, 114, 173-179
    • (2000) Synth. Met. , vol.114 , pp. 173-179
    • Cametti, C.1    Codastefano, P.2    D'amato, R.3    Furlani, A.4    Russo, M.V.5
  • 51
    • 77955254744 scopus 로고    scopus 로고
    • Since the MALS detector signal is divided by the signal from the DRI detector to produce a signal proportional to molar mass, large and systematic errors can be expected whenever the former signal is nonzero and the latter signal very close to zero and/or dominated by noise.
    • Since the MALS detector signal is divided by the signal from the DRI detector to produce a signal proportional to molar mass, large and systematic errors can be expected whenever the former signal is nonzero and the latter signal very close to zero and/or dominated by noise.
  • 52
    • 77955235447 scopus 로고    scopus 로고
    • The origins of these bimodal MMD are not known. Evidently, there are two species that independently propagate, but since the relative amounts did not obviously correlate with the experimental conditions (solvent, T, or presence of water), it is a matter of speculation as to what the two species may be.
    • The origins of these bimodal MMD are not known. Evidently, there are two species that independently propagate, but since the relative amounts did not obviously correlate with the experimental conditions (solvent, T, or presence of water), it is a matter of speculation as to what the two species may be.
  • 53
    • 33646941247 scopus 로고
    • See Supporting Information for details
    • See Supporting Information for details: Zimm, B. H.; Stockmayer, W. H. J. Chem. Phys. 1949, 17, 1301-1314
    • (1949) J. Chem. Phys. , vol.17 , pp. 1301-1314
    • Zimm, B.H.1    Stockmayer, W.H.2


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.