Polymeric cross-linked

Ahphatic dihahdes, like ethylene dichloride [107-06-2] react with alkylene amines to form various polymeric, cross-linked, water soluble cationic products (19) or higher alkyleneamine products depending on the reactant ratio. 

Radiation-induced modification or processing of a polymer is a relatively sophisticated method than conventional thermal and chemical processes. The radiation-induced changes in polymer materials such as plastics or elastomers provide some desirable combinations of physical and chemical properties in the end product. Radiation can be applied to various industrial processes involving polymerization, cross-linking, graft copolymerization, curing of paints and coatings, etc. 

Radiation synthesis has been reviewed by Wagner (1969), Vershchinskii (1972), Wilson (1972), and Chutny and Kucera (1974). A good summary is also available in Spinks and Woods (1990). On the theoretical side, radiation-induced reactions of importance to industry can be classified as addition reactions, sub-sitution reactions, and other reactions including polymerization, cross-linking,... 

The alpha phase is made up of ice-hke needles having polymeric cross-linked structure. It melts at 62.3°C and has a vapor pressure of 73 torr at... 

We have left this subject to the end of the chapter because it uses all of the principles we have established earlier on. It requires an understanding of radical polymerization, co-polymerization, cross-linking, functionalization of polymers after they have been made, and so on. This is a rapidly growing subject and we can only outline the basics. 

In contrast, GPVI-deficient platelets woe unresponsive to CRP-XL, showing that GPVI is a signalling receptor for the polymeric cross-linked triple-helical Gly-Pro-Hyp motif. 

Polymeric, cross-linked dextran gels, called Sephadex , are used in size-exclusion TLC. Sephadex gels, which are available in coarse (100-300 jU-m), medium (50-150 IJLm), fine (20-80 jU-m), and superfine (10-40 par-... 

The decomposition products of CBA should not affect the rates of nucleation, polymerization, cross-linking, and decomposition of CBA. 

Total impregnation. The infusion of consolidant becomes necessary when the original fabric is degraded to the point of being dissociated to an amorphic substance. While acrylic and vinyl resins are preferable for their solvency after polymerization, cross-linking epoxides and polyesters may be necessary for their cohesive and gap-filling properties. 

Ionizing radiation produces ionized and excited atoms and molecules in all materials. Excited molecules formed directly or by recombination reactions between electrons and cations decompose in the vast majority of systems to highly reactive free radicals. The reactive species formed on radiolysis are precursors of further reactions, such as reduction, oxidation, polymerization, cross linking and so on. It should therefore be possible to apply radiation chemical methods to industrial processes and, consequently, extensive applied research and development of radiation chemistry has been carried out during the past three decades. 

Extension Post-polymerization cross-linking Decomposition... 

Chemical processes involving polymerization/cross-linking of coating formulation having suitable polymerizable groups. These are inherently fast processes. 

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