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Volumn 7, Issue 10, 2014, Pages 2923-2929

Diglycerol-based polyesters: Melt polymerization with hydrophobic anhydrides

Author keywords

anhydrides; biomass; green chemistry; polymers; sustainable chemistry

Indexed keywords

BIOMASS; HYDROPHOBICITY; MONOMERS; MONOTERPENES; POLYESTERS; POLYMERIZATION; SYNTHESIS (CHEMICAL); TEMPERATURE;

EID: 84923105716     PISSN: 18645631     EISSN: 1864564X     Source Type: Journal    
DOI: 10.1002/cssc.201402249     Document Type: Article
Times cited : (38)

References (65)
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    • H. N. Cheng, R. A. Gross, in ACS Symposium Series 1043, ACS Symposium Series 1043, American Chemical Society, Washington DC, 2010, p. 466.
    • (2010) ACS Symposium Series 1043 , pp. 466
    • Cheng, H.N.1    Gross, R.A.2
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    • Web of Science searches on January, 3, 2014 and March, 31, 2014 using the keywords diglycerol and polymer gave 13 and 17 responses, respectively. These responses were related to plasticizers, oligomerization of glycerol, and micelles, but no mention of polyester synthesis. Additionally, a similar search using the keywords diglycerol and polyester gave 2 non-related responses. In these cases, the term diglycerol indicated the presence of two glycerol molecules within suberin (see) rather than two glycerol molecules that are covalently bound together with a central ether linkage to form a polyol.
    • Web of Science searches on January, 3, 2014 and March, 31, 2014 using the keywords diglycerol and polymer gave 13 and 17 responses, respectively. These responses were related to plasticizers, oligomerization of glycerol, and micelles, but no mention of polyester synthesis. Additionally, a similar search using the keywords diglycerol and polyester gave 2 non-related responses. In these cases, the term diglycerol indicated the presence of two glycerol molecules within suberin (see, J. Graça, H. Pereira, Biomacromolecules 2000, 1, 519-522) rather than two glycerol molecules that are covalently bound together with a central ether linkage to form a polyol.
    • (2000) Biomacromolecules , vol.1 , pp. 519-522
    • Graça, J.1    Pereira, H.2
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    • 85028130609 scopus 로고    scopus 로고
    • After grinding and seiving (150 μm) the maleic anhydride (3.0 g), the reaction was stirred at ambient temperature with α-phellandrene (17.5 g).
    • After grinding and seiving (150 μm) the maleic anhydride (3.0 g), the reaction was stirred at ambient temperature with α-phellandrene (17.5 g).
  • 51
    • 85028172381 scopus 로고    scopus 로고
    • FTIR spectroscopy and DSC did not detect the presence of unreacted maleic anhydride.
    • FTIR spectroscopy and DSC did not detect the presence of unreacted maleic anhydride.
  • 52
    • 84907232961 scopus 로고    scopus 로고
    • A. Caldarelli, F. Cavani, O. Garone, G. Pavarelli, J.-L. Dubois, I. Mitsova, L. Simeonova in Reducing the Carbon Footprint of Fuels and Petrochemicals, 2012-3, DGMK Tagungsbericht, 2012, 145-151.
    • A. Caldarelli, F. Cavani, O. Garone, G. Pavarelli, J.-L. Dubois, I. Mitsova, L. Simeonova in Reducing the Carbon Footprint of Fuels and Petrochemicals, Vol. 2012-3, DGMK Tagungsbericht, 2012, pp. 145-151.
  • 54
    • 85028130279 scopus 로고    scopus 로고
    • Generally, the propensity for sublimation of BCA1 or BCA2 under vacuum decreased as the amount of diglycerol increased and polymerization temperature decreased. For instance, the highest amount of sublimation (≈15 mol%) was observed at 140C with a [diglycerol]/[anhydride] ratio of 1. At 120C, the amount of sublimation decreased to ≈10 mol%. When the amount of diglycerol was increased from a molar ratio to 1 to 1.5, the sublimation at 120C was <5 mol%. At the beginning of the polymerization, the loss of residual water (≈2.5%) (see Figure S13) in diglycerol was concurrent with sublimation.
    • Generally, the propensity for sublimation of BCA1 or BCA2 under vacuum decreased as the amount of diglycerol increased and polymerization temperature decreased. For instance, the highest amount of sublimation (≈15 mol%) was observed at 140C with a [diglycerol]/[anhydride] ratio of 1. At 120C, the amount of sublimation decreased to ≈10 mol%. When the amount of diglycerol was increased from a molar ratio to 1 to 1.5, the sublimation at 120C was <5 mol%. At the beginning of the polymerization, the loss of residual water (≈2.5%) (see Figure S13) in diglycerol was concurrent with sublimation.
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    • Dielectric constant for diglycercol was reported by Solvay Chemicals in product literature. A similar situation exists when comparing the polarity of diethylene glycol (ε=30.95) and ethylene glycol (ε=40.35) (see).
    • Dielectric constant for diglycercol was reported by Solvay Chemicals in product literature. A similar situation exists when comparing the polarity of diethylene glycol (ε=30.95) and ethylene glycol (ε=40.35) (see, C. M. Kinart, M. Klimczak, W. J. Kinart, J. Mol. Liq. 2009, 145, 8).
    • (2009) J. Mol. Liq. , vol.145 , pp. 8
    • Kinart, C.M.1    Klimczak, M.2    Kinart, W.J.3
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    • 85028162965 scopus 로고    scopus 로고
    • -1).
    • -1).
  • 64
    • 85028131085 scopus 로고    scopus 로고
    • -1) calculated by GPC supports the assumption of a hyperbranched polymer structure.
    • -1) calculated by GPC supports the assumption of a hyperbranched polymer structure.
  • 65
    • 85028150424 scopus 로고    scopus 로고
    • g values compared to Figure S25b and S25d.
    • g values compared to Figure S25b and S25d.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.