6533b852fe1ef96bd12ab674
RESEARCH PRODUCT
Miscibility of Blends of Biodegradable Polymers and Copolymers with Different Plasticizers
Rosa García-loperaAgustín CamposConcepción AbadIsidro S. MonzóIolanda Porcarsubject
Materials scienceTernary numeral systemPolymers and PlasticsOrganic ChemistryPlasticizerCondensed Matter PhysicsMiscibilityBiodegradable polymerSolventchemistry.chemical_compoundchemistryPolymer chemistryMaterials ChemistryCopolymerEpichlorohydrinPhysical and Theoretical ChemistryTernary operationdescription
Miscibility between components of different plasticizer(A)/solvent(B)/biodegradable polymer(C) ternary systems with H-bonding has been compared. Systems were formed by two H-donor phenolic plasticizers, 4-nonylphenol (NP) and 4:4'-dihydroxydiphenylmethane (BPF); an H-acceptor solvent, epichlorohydrin (ECH); and H-acceptor poly(3-hydroxybutyrate) (PHB) or poly[(3-hydroxybutyrate)-co-(3-hydroxyvalerate)] (PHBHV) copolymers. Blend miscibility is the result of the balance of three competitive H-bondings: plasticizer self-association (AA), plasticizer-solvent (AB) and plasticizer-polymer (AC) interassociations. The strength and extent of such specific interactions have been experimentally monitored by fluorescence spectroscopy either in solution or in solid state. Theoretical modelling has been conducted with a recent thermodynamic approach based on two free-energy excess functions.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2008-09-09 | Macromolecular Chemistry and Physics |