Journal of Wood Chemistry and Technology · 1994 · 33 citations · 9 references
Natural SciencesChemistryMaterials ScienceMaterials ChemistryPolymer ChemistryPolymer MaterialsPolymer CharacterizationPolymer MorphologyPolymer NetworksPolymer Phase BehaviorPolymer PhysicsPolymer StructureCopolymers Phase BehaviorLignin ChemistryLignin-derived CompoundsLinear PolymersMultiphase ChemistryPolystyreneStar Polymer ArchitectureStar Polymers
Abstract Star-like copolymers of a lignin derivative, hydroxypropyl lignin (L), with polystyrene (PS) have been synthesized using the L-component as the soft segment and PS blocks of 10,200 molecular weight as the hard segment according to a procedure previously described. The usefulness of LPS star-like copolymers to assist in the dispersion of L-component in PS, and in the formation of multiphase polyblends, was demonstrated by scanning electron microscopy. Other structure-property effects were obscure by the inability to isolate a PS segment-free LPS preparation either because a part of the PS segment failed to gain appropriate functionality, or because it failed to become incorporated by covalent attachment to the L-component.
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