Solution characterization of starch nicotinates with different degrees of esterification.
A series of starch-nicotinic acid copolymers with a degree of esterification ranging from about 15% to about 90% was prepared, and the stability in solution of two representative samples of the series was tested. The variation of some physico-chemical characteristics in the series was examined by solubility tests, viscometry and refractometry, and found to be not simply correlatable to the nicotinylation degree.
D004952:Esters; D009539:Nicotinic Acids / Q000008:administration & dosage*; D011108:Polymers; D012995:Solubility; D013213:Starch; D013329:Structure-Activity Relationship; D014783:Viscosity
D004952:Esters; D009539:Nicotinic Acids; D011108:Polymers; C030540:starch-nicotinate copolymer; D013213:Starch