Copolymerisation von 4-(1,1-dicyanoethylazo)benzylmethacrylat mit styrol, methacrylonitril und methylmethacrylat mit anschließender Pfropfung der Azocopolymere
✍ Scribed by Nuyken, Oskar ;Rengel, Reinhard ;Kerber, Robert
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1980
- Weight
- 545 KB
- Volume
- 181
- Category
- Article
- ISSN
- 0025-116X
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✦ Synopsis
Abstract
4‐(1,1‐Dicyanoethylazo)benzyl methacrylate (3), a new azo‐monomer, was copolymerized with styrene, methacrylonitrile, and methyl methacrylate (MMA) giving azo‐copolymers. The compositions of the copolymers from 3 and MMA were nearly identical with those of the monomer mixtures. Thus allowing 100% conversion leading to copolymers of almost identical chemical composition. These azo‐copolymers were used as initiators for different monomers in either emulsion or solution, resulting in graft‐copolymers. The graft‐copolymers were characterized by IR and GPC. In one case the raw graft‐copolymer was separated into ungrafted backbone‐polymer, grafted copolymer, and homopolymer of the component to be grafted.