Assertion: hydrogen peroxide's reaction | /r/HasSubevent | decrease
Facets:
value: in molecular weight
type: OTHER
value: for the oxidized pva
type: TRANSITIVE-OBJECT
Source sentences:
text: The reaction led to an increase in contents of carbonyl and carboxyl groups and a decrease in molecular weight for the oxidized PVA, and a good oxidation effect was observed as pH value of the reaction medium was 5.