Synthesis, characterisation and water sorption properties of pectin-dehydrogenation polymer (lignin model compound) complex.
Coniferyl alcohol was polymerised in the presence of pectin and a pectin-DHP complex was isolated. Characterisation of the complex has demonstrated that DHP (20% wt) was covalently linked by ester bonds to the pectin. The water sorption behaviour of the pectin-DHP complex was determined at several relative vapour pressures and compared with those obtained on pectin, DHP and a blend of both polymers in the same proportion as in the complex. The complex exhibited a lower hydrophilicity resulting from three associated phenomena: grafting, pectin-DHP interactions and the formation of a chemical network.
Cathala
B
B
INRA UPBP, Equipe de biochimie des macromolécules végétales, Reims, France. cathala@reims.inra.fr
Chabbert
B
B
Joly
C
C
Dole
P
P
Monties
B
B
D002850:Chromatography, Gel; D008031:Lignin / Q000737:chemistry*; D010368:Pectins / Q000737:chemistry*; D010636:Phenols / Q000737:chemistry*; D011108:Polymers; D014867:Water / Q000737:chemistry
D010636:Phenols; D011108:Polymers; D014867:Water; D010368:Pectins; D008031:Lignin; C010559:coniferyl alcohol