Effect of the reaction conditions on the photopolymerization of methyl methacrylate by diethyl dithiocarbamato-(1,2)-propane diol

2005 ◽  
Vol 98 (5) ◽  
pp. 2320-2328 ◽  
Author(s):  
P. K. Bhuyan ◽  
D. K. Kakati
Keyword(s):  
Methyl Methacrylate ◽  
Reaction Conditions

Synthesis of Methacrolein by Condensation of Propionaldehyde with Formaldehyde

2011 ◽  
Vol 396-398 ◽  
pp. 1094-1097
Author(s):  
Yu Chao Li ◽  
Rui Yi Yan ◽  
Lei Wang ◽  
Lu Liu ◽  
Dan Liu ◽  
...  
Keyword(s):  
Methyl Methacrylate ◽  
Water Content ◽  
Atmospheric Pressure ◽  
Mannich Base ◽  
Amine Salt ◽  
Reaction Conditions ◽  
Starting Mixture ◽  
Important Intermediate ◽  
Polymer Dispersions ◽  
Optimal Reaction

Methacrolein is an important intermediate in the synthesis of methyl methacrylate (MMA), which is widely used for producing acrylic plastics or producing polymer dispersions for paints and coatings. In this paper, methacrolein was synthesized by condensation of propionaldehyde with formaldehyde in the pressense of amine salt through Mannich base intermediate at the atmospheric pressure. The optimal reaction conditions were obtained. The water content in starting mixture were also investigated

Graft Copolymerization of Soybean Protein Isolate and Methyl Methacrylate

2011 ◽  
Vol 695 ◽  
pp. 33-36
Author(s):  
Yan Lu ◽  
Xue Gang Luo ◽  
Xiao Yan Lin
Keyword(s):  
Methyl Methacrylate ◽  
Soy Protein ◽  
Graft Copolymerization ◽  
Soybean Protein ◽  
Ammonium Persulfate ◽  
Protein Isolate ◽  
Optimal Conditions ◽  
Reaction Conditions ◽  
Soybean Protein Isolate ◽  
Ft Ir

New thermoplastic soy protein isolated (SPI) and methyl methacrylate (MMA) copolymers (T-SPI) were prepared using graft copolymerization and initiated with ammonium persulfate (APS). The reaction conditions such as initiator concentration and temperature on the graft percentage (GP) were investigated. The single factor experimental showed that the optimal conditions of the graft reaction. The products were characterized by means of FT-IR and DSC. The results indicated that the monomer was grafted successfully on SPI and the T-SPI had a glass transition at 122°C, and the most important, the water absorption of materials declined obviously.

Graft Copolymers of Poly(methyl methacrylate) on Cellulose and Their Use as Supports in Metal Ion Sorption

2005 ◽  
Vol 13 (1) ◽  
pp. 105-116
Author(s):  
Ghanshyam S. Chauhan ◽  
Suresh Kumar ◽  
Monika Verma ◽  
Rajeev Sharma
Keyword(s):  
Methyl Methacrylate ◽  
Metal Ion ◽  
Graft Copolymers ◽  
Monomer Concentration ◽  
Polymeric Materials ◽  
Dimethyl Formamide ◽  
Reaction Conditions ◽  
Ion Sorption ◽  
Ft Ir ◽  
Environmental Technologies

In order to develop new polymeric materials for environmental technologies based on cellulose, methyl methacrylate was graft copolymerized using benzoyl peroxide as free radical initiator. Reaction conditions were established for optimum grafting of methyl methacrylate and used to co-graft with it co-monomers such as acrylamide, acrylic acid and acrylonitrile. Graft copolymers were characterized by FT-IR, elemental analysis, and swelling behaviour in water and dimethyl formamide. Attempts were made to evaluate the effect of co-monomer concentration on the grafting behaviour of methyl methacrylate and on the structure of the copolymers. Candidate co-polymers were used as supports for the sorption of metal ions. Results were compared with those obtained using native cellulose, cellulose phosphate and oxycellulose.

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