Synthesis of Casein Graft Acrylonitrile and Side Chain Distribution of Graft Copolymer  

作　　者：董擎之 顾利霞 

出　　处：《Journal of China Textile University(English Edition)》2000年第1期31-35,共5页

摘　　要：Graft copolymerization of casein with acrylonitrile wascarried out using potassium persulfate as an initiator.First,solubility of casein in several solvents was studiedin order to choose a solvent for graft reaction.Percentgrafting and grafting efficiency under various concentra-tions of initiator and monomer,and various times wereevaluated.A method to separate side chain from graftcopolymer was explored.Side chain length and its distri-bution were investigated.FTIR spectra for side chain,casein,and grafted copolymer were taken to establishthe occurrence of grafting.The thermal property ofgraft copolymer was measured and confirmed that the T_pof the copolymer was improved appreciably.Graft copolymcrization of casein with acrylonitrile was carried out using potassium persulfatc as an initiator. First, solubility of casein in several solvents was studied in order to choose a solvent for graft reaction. Percent grafting and grafting efficiency under various concentrations of initiator and monomer, and various times were evaluated. A method to separate side chain from graft copolymcr was explored. Side chain length and its distribution were investigated. FTIR spectra for side chain, casein, and grafted copolymer were taken to establish the occurrence of grafting. The thermal property of graft copolymcr was measured and confirmed that the Tp of the copolymcr was improved appreciably.

关 键 词：CASEIN ACRYLONITRILE GRAFT COPOLYMERIZATION solubility. 

分 类 号：TQ316.3[化学工程—高聚物工业]