Nvp Cross-linked Polymerization Cross-linked Polymer Applied Research

Following themes are presented in this article: Polyvinylpolypyrrolidone is synthesized by copolymerization of N扤-Methylene-bis-acrylamide and N-Vinylpyrrolidone, Polyvinylpolypyrrolidone is used as clarifier of beer and tea beverage0 In the study of copolymerization of N扤-Methylene-bis-acrylamide and N-Vinylpyrrolidone, AIBN is suitable for initiator, And water include 5% Na2SO4 and 5% Na2HPO4 is suitable for solvent0 Polyvinylpolypyrrolidone * cann抰 be synthesized if using other solvents according to experiments According to optimizing experiments, NVP can be converted most if reaction is under 700C, And the dose of AIBN is 0.l%~ Mechanism is given in this article, And kinetics is discussed on the basis of mechanism as well0 Reaction progression is one for NVP, Mass transfer has influence on reaction rate, So reaction rate constant has two in different period of reaction0 When Polyvinylpolypyrrolidone is used as clarifier of beer, Many impurities can be eliminated, Beer is much more clear than ever Technology conditions are optimized through single factor experiments 0 When Polyvinylpolypyrrolidone is used as clarifier of tea beverage, Storage stability of tea beverage is improved much 0 Technology conditions are optimized through single factor experiments, 30 0C is suitable for processing 0 Processing time is longer, Store stability of tea beverage is better 0 But when processing time is longer than 30mm, Storage stability is no longer improved 0...