Initiation by High-Energy Radiations

Ionic polymerization initiated by high-energy radiation might offer such an opportunity. The ejected electron might be sufficiently far from the positive center which initiates the polymerization. Its growth therefore would proceed in absence of a counter-ion. 

The modification of the properties of cotton cellulosic textile products, through free radical-initiated graft copolymerization reactions with vinyl monomers, has been investigated at the Southern Laboratory for a number of years (6, 9). In this chapter, we summarize the basic mechanisms and principles involved in free radical reactions of cellulose, initiated by high energy radiation, ceric ion in acidic solution, and aqueous solutions of ferrous ion and hydrogen peroxide. Some of the properties of fibrous cotton cellulose graft copolymers are also presented. 

Volume 14 deals with all aspects of polymer degradation, classified on the basis of the method of initiation for the process. Thus, Chapter 1 covers thermal degradation, Chapter 2 radiolysis initiated by high-energy radiation such as X- and 7-radiation and electrons, Chapter 3 photodegradation arising from exposure of polymers to visible or ultraviolet radiation and Chapter 4 discusses oxidative degradation, oxidation and photooxidation. 

Chapiro, A. 1974. Cationic polymerizations initiated by high-energy radiation. Makromol Chem 175 1181-1197. 

Solid-state polymerization of a monomer, if it can be achieved topochemically, is an interesting approach to polymer single crystals. Several publications describing the polymerization of NVK in the crystalline state initiated by high-energy radiation [468-471],... 

Initiation by High-Energy Radiation Pulse Radiolysis... 

Vinyl Polymerization Initiated by High-Energy Radiation... 

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