Radiation-induced graft copolymerization of 2-hydroxyethyl methacrylate onto poly(γ-methyl-L-glutamate) membrane in ethanol solution

✍ Scribed by Yue-E Fang; Xia Zhao

• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 201 KB
• Volume: 68
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/(sici)1097-4628(19980606)68:10<1575::aid-app5>3.0.co;2-e

✦ Synopsis

The radiation-induced graft copolymerization of 2-hydroxyethyl methacrylate (HEMA) onto poly(g-methyl-L-glutamate) membranes was investigated in ethanol. The effects of dose, dose rate, concentration of HEMA, and temperature on the degree of grafting were studied. The initial rate of grafting copolymerization shows the following functional relationship equation: dG 0 /dt Å k[M] 0 D g 0.56 . The average values of the apparent constants at 27 and 37ЊC for the initial rates of grafting are k 1 Å 51 and k 2 Å 91 G%h 00.44 kGy 00.56 mol 01 L, respectively. The apparent activation energy of grafting copolymerization is E Å 10.7 kcal/mol.