Study On Controlled Preparation Of Acrylamide Polymers And Their Properties

In this paper,the modifiedβ-cyclodextrin were selected as initiators,and the method of single electron transfer active free radical polymerization was adopted for preparing the P(AM)、P(AM-NaAMPS)、P(AM-DMDAAC-SMA)with controllable average molecular weight.The various factors that can affect the aggregation are discussed in detailed,and the corresponding optimal preparation conditions were obtained by adjusting a single variable.The FT-IR and ~1H-NMR test of samples shown that the have obtained the target product;The GPC results shown that the molecular weight distribution of P(AM)、P(AM-NaAMPS)、P(AM-DMDAAC-SMA)are narrow and the PDI are controllable.In addition,emulsifyingpropertyofP(AM)、P(AM-NaAMPS)、P(AM-DMDAAC-SMA)were characterized by adjusting various process parameters,such as processing time,initial concentration,solution temperature and salt concentration,which will bring considerable benefits to the future research and application.We come to a conclusion that single electron transfer reactive radical polymerization method is more suitable for preparing polyacrylamide polymers.At last,through compare analyze the thermal endurance properties of P(AM)、P(AM-NaAMPS)、P(AM-DMDAAC-SMA),we draw a conclusion that P(AM-NaAMPS)and P(AM-DMDAAC-SMA)are more suitable for practical application.