Graft Copolymerization of Methyl Methacrylate onto Silk Sericin Initiated by Ceric Ammonium Nitrate

2006 ◽  
Vol 43 (6) ◽  
pp. 899-907 ◽  
Author(s):  
Yan Song ◽  
Yong Jin ◽  
Deqing Wei ◽  
Jing Sun
Keyword(s):  
Methyl Methacrylate ◽  
Ammonium Nitrate ◽  
Graft Copolymerization ◽  
Ceric Ammonium Nitrate ◽  
Silk Sericin

Graft copolymerization of methyl methacrylate onto sago starch using ceric ammonium nitrate and potassium persulfate as redox initiator systems

2002 ◽  
Vol 83 (10) ◽  
pp. 2275-2275
Author(s):  
Isam Y. M. Qudsieh ◽  
Wan Md Zin Wan Yunus ◽  
Fakhru'l-Razi A. ◽  
Mansor B. Ahmad ◽  
Mohamad Zaki Ab. Rahman
Keyword(s):  
Methyl Methacrylate ◽  
Ammonium Nitrate ◽  
Graft Copolymerization ◽  
Potassium Persulfate ◽  
Ceric Ammonium Nitrate ◽  
Sago Starch ◽  
Redox Initiator

Studies on Methyl Methacrylate Grafted onto Chitosan by Ceric Ion Initiation

2011 ◽  
Vol 284-286 ◽  
pp. 1713-1716 ◽  
Author(s):  
Lian Liu ◽  
Xie Wei Chen ◽  
Pei Wang ◽  
Chong Wang
Keyword(s):  
Aqueous Solution ◽  
Methyl Methacrylate ◽  
Ftir Spectroscopy ◽  
Ammonium Nitrate ◽  
Reaction Temperature ◽  
Graft Copolymerization ◽  
Nitrogen Atmosphere ◽  
Ceric Ammonium Nitrate ◽  
Grafting Efficiency ◽  
Ceric Ion

Chitosan-g-MMA was prepared with methyl methacrylate using ceric ammonium nitrate (CAN) as an initiator under nitrogen atmosphere in aqueous solution and characterized by FTIR spectroscopy. The effects of concentration of CAN, the amount of MMA, reaction temperature on graft copolymerization were studied by determining the grafting percentage and grafting efficiency. The maximum grafting percentage and grafting efficiency obtained under these conditions were 790 % and 83 %, respectively.

Graft copolymerization of methyl methacrylate onto sago starch using ceric ammonium nitrate and potassium persulfate as redox initiator systems

2001 ◽  
Vol 82 (6) ◽  
pp. 1375-1381 ◽  
Author(s):  
A. Fakhru'L-Razi ◽  
Isam Y. M. Qudsieh ◽  
Wan Md Zin Wan Yunus ◽  
Mansor B. Ahmad ◽  
Mohamad Zaki Ab. Rahman
Keyword(s):  
Methyl Methacrylate ◽  
Ammonium Nitrate ◽  
Graft Copolymerization ◽  
Potassium Persulfate ◽  
Ceric Ammonium Nitrate ◽  
Sago Starch ◽  
Redox Initiator

Ceric-induced grafting of acrylonitrile onto sodium alginate: kinetics and mechanism and effects of the reaction medium

1994 ◽  
Vol 6 (3) ◽  
pp. 193-200 ◽  
Author(s):  
S B Shah ◽  
C P Patel ◽  
H C Trivedi
Keyword(s):  
Free Radical ◽  
Ammonium Nitrate ◽  
Sodium Alginate ◽  
Graft Copolymerization ◽  
Mixed Solvents ◽  
Reaction Medium ◽  
Kinetic Scheme ◽  
Water Systems ◽  
Ceric Ammonium Nitrate ◽  
Good Agreement

The kinetic scheme of free radical graft copolymerization of acrylonitrile (AN) onto sodium alginate, using ceric ammonium nitrate as an initiator, has been proposed and equations relating the values of Rp, Rr and Rh are also suggested. The results have been found to be in good agreement with the proposed mechanism. The per cent grafting of AN onto sodium alginate has also been determined as a function of composition of the mixed solvents comprising methanol: water, ethanol: water, n-propanol:water and n-butanol: water systems. The reaction medium has been found to play an important role in graft copolymerization. The results of the effect of the reaction medium on grafting are also discussed.

scholarly journals BIODEGRADATION BEHAVIOR OF POLY(METHYL METHACRYLATE) GRAFTED SAGO STARCH BIOPOLYMER

2010 ◽  
Vol 8 (2) ◽  
pp. 37-45
Author(s):  
Isam Yassin Qudsieh
Keyword(s):  
Fourier Transform ◽  
Methyl Methacrylate ◽  
Graft Copolymerization ◽  
Ceric Ammonium Nitrate ◽  
Sago Starch ◽  
Infrared Spectrophotometry ◽  
Optimum Conditions ◽  
Nitrogen Gas ◽  
Poly Methyl Methacrylate ◽  
Gas Atmosphere

The graft copolymerization of poly(methyl methacrylate) (PMMA) onto sago starch (sago starch-g-PMMA) was carried out using ceric ammonium nitrate (CAN) as an initiator. PMMA was grafted onto sago starch using CAN as an initiator under nitrogen gas atmosphere. The maximum percentage of grafting (%G) was determined to be 246% at the optimum conditions. The copolymers produced were characterized by Fourier Transform Infrared Spectrophotometry (FTIR), The FTIR spectra of the copolymers clearly indicated the presence of characteristic peaks of PMMA and sago starch, which suggested that PMMA had been successfully grafted on the sago starch. Biodegradability studies of sago starch-g-PMMA and sago starch were carried out by ?-amylase enzyme. Maximum biodegradation of the biopolymer was achieved after 3 days of incubation, while for the product was 7 days. The maximum production of glucose was achieved when the concentration of -amylase was 50 ppm.

Sign in / Sign up

Export Citation Format

Share Document