The Formation of Strong Intermolecular Interactions in Immiscible Blends of Poly(vinyl alcohol) (PVA) and Lignin
Citations Over TimeTop 10% of 2003 papers
Abstract
The intermolecular interactions of lignin with a hydrophilic polymer, poly(vinyl alcohol) (PVA), were studied using thermal analyses and FT-IR spectroscopy of a series of PVA/hardwood kraft lignin blend fibers prepared by thermal extrusion. Although two phases are observed in this blend system, some of the lignin was closely associated with the PVA in the PVA-rich phase. The crystallinity of the PVA fraction was reduced with increasing lignin content. An interaction energy density of -9.34 cal cm(-1), calculated from melting point depression data, suggests that strong intermolecular interactions exist between PVA and lignin. FT-IR analysis indicates the formation of strong intermolecular hydrogen bonds between the hydroxyl groups of PVA and lignin. Although the PVA/lignin blend system is immiscible in the bulk, the results herein show the existence of some specific intermolecular interaction between PVA and lignin.
Related Papers
- → X-ray diffraction and infrared spectroscopy analyses on the crystallinity of engineered biological hydroxyapatite for medical application(2015)83 cited
- → Influence of antioxidants and cross-linking on the crystallinity of XLPE dielectrics(2007)8 cited
- → A Comparative Study of The Crystallinity Value of Polyethylene Glycol-Based Composites Using XRD and WAXS(2022)4 cited
- → The effect of the conditions of the treatment of gel on the crystallinity of the layered compound zirconium (IV) BIS(phosphite)(1990)3 cited
- Research on Crystallization Behavior of PVF Film during Processing(2008)