[Enzymic segregation of segmented polyurethanes containing sugar residues in the composition of the main chain].
It is shown that segmented polyurethanes with D-lactose and D-maltose residues in the main polymer chain are subjected to a specific effect of enzymes: beta-galactosidase and alpha-amylase, respectively. This leads to a decrease in values of characteristic viscosity and physicomechanical indices of polyurethanes after their incubation with the mentioned enzymes. The compounds obtained are subjected to acid hydrolysis, which confirms sugar residues in the main polymer chain.
D000818:Animals; D002241:Carbohydrates; D004343:Drug Implants; D005696:Galactosidases / Q000378:metabolism*; D007700:Kinetics; D007785:Lactose; D008320:Maltose; D011140:Polyurethanes; D011817:Rabbits; D013329:Structure-Activity Relationship; D013379:Substrate Specificity; D000516:alpha-Amylases / Q000378:metabolism*; D001616:beta-Galactosidase / Q000378:metabolism*
D002241:Carbohydrates; D004343:Drug Implants; D011140:Polyurethanes; D008320:Maltose; D005696:Galactosidases; D000516:alpha-Amylases; D001616:beta-Galactosidase; D007785:Lactose
Fermentativnoe rasshcheplenie segmentirovannykh poliuretanov, soderzhashchikh v sostave glavnoĭ tsepi ostatki sakharov.