Reactive modifier of poly(actic acid) and method for producing the reactive modifier of poly(actic acid)

摘要

revealed reactive modifier, poly (lactic acid) of the general formula 1 and generation reactive modifiers pla which is that having one or two hydroxyl end groups (ko) flexible polyester alifatyczny dissolves in nieprotonowym polar rozpuszc zalniku organic to contain in its structure, in addition to carbon atoms.hydrogen and oxygen and chlorine atoms, bromine and nitrogen and subjected to esterification reaction with excess esterification reagent, which is a - (a) - (b) a halide or anhydride of organic acid or alpha - halokarboksylowego - (c) an organic acid alpha - halokarboksylowym.in turn, phase constituting the polymer organic solution left over coal active sludge separates and obtained filtrate is alkaline aluminium oxide and mixed, filtered and then precipitates in cold methanol. the sludge separates and dried under reduced pressure at a temperature of 20 - 45u00b0c receiving makroinicjator to polymerization processes rodnikowej with atom transfer (atrp).makroinicjator dissolves in a reactionary in nieprotonowym organic solvent, introduces (ko) monomer (s) and catalyst, after which the polymer solution obtained wkrapla in cold methanol and the precipitated reactive modifier odsu0105cza and dried for 12 to 48 hours under oh bniu017conym pressure at 25 - 60u00b0c.