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Molecular Weight Distribution of (Semi-) Commercial Lignin Derivatives
Abstract
Absolute molecular weights of several commercially and semi-commercially available lignins were determined by gel permeation chromatography (GPC with a differential viscosity detector (DV). Solubility in THF was assured by acetylation. Polystyrene molecular weight standards were used for establishing a universal calibration curve. The lignins included those from hardwood, softwood, and sugar cane bagasse; and these were isolated by the kraft or organosolv pulping process, or by steam explosion/autohydrolysis. All lignins exhibited more or less uniform distributions with weight average molecular weights (Mw) between 3, 000 and 20, 000; with polydispersities (Mw/Mn)between 2 and 12; with Mark-Houwink-Sakurada exponential factors (α) between 0.17 and 0.35; and with intrinsic viscosities between 0.037 and 0.08 dLg−1. A significant relationship between Mw/Mn and Mw was discovered that had a correlation factor of 0.92. This relationship has the form of Mw/Mn = 0.45 (Mw 10−3 + 0.85.
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Cited by
Figueiredo, P., Lintinen, K., Hirvonen, J. T., Kostiainen, M. A., & Santos, H. A. (2018) · Progress in Materials Science · doi:10.1016/j.pmatsci.2017.12.001 · Cited by 956
Galkin, M. V., & Samec, J. S. M. (2016) · ChemSusChem · doi:10.1002/cssc.201600237 · Cited by 640
Mansouri, N.-E. E., & Salvadó, J. (2006) · Industrial Crops and Products · doi:10.1016/j.indcrop.2005.10.002 · Cited by 599
Tan, S. S. Y., MacFarlane, D. R., Upfal, J., Edye, L. A., Doherty, W. O. S., Patti, A. F., Pringle, J. M., & Scott, J. L. (2009) · Green Chemistry · doi:10.1039/b815310h · Cited by 429
Polymer/lignin blends: Interactions, properties, applications
Kun, D., & Pukánszky, B. (2017) · European Polymer Journal · doi:10.1016/j.eurpolymj.2017.04.035 · Cited by 417
Metadata
- Authors
- Glasser, W. G., Davé, V., & Frazier, C. E.
- Venue
- Journal of Wood Chemistry and Technology
- Publisher
- Informa UK Limited
- Published
- 1993-12
- Volume
- 13
- Issue
- 4
- Pages
- 545-559
- ISSN
- 0277-3813 (ISSN-L)
- 1532-2319
- OpenAlex
- W2059395746
- Cited by
- 196
- References
- 0
- FWCI
- 0.40
- Type
- journal article
- Language
- en
- Open access
- closed
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- Glasser, W. G., Davé, V., & Frazier, C. E. (1993). Molecular Weight Distribution of (Semi-) Commercial Lignin Derivatives. Journal of Wood Chemistry and Technology. https://doi.org/10.1080/02773819308020533
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